A shepherd’s flock produces good wool, but the sheep are small and weak. The shepherd wants larger, stronger sheep that produce good wool. Which would be the shepherd’s best choice for selective breeding?
Answers
You could buy 1 bigger sheep and breed it with a smaller one :D
hope this helps
Related Questions
What do all Organism Need? Select three Options
Nervous System
A Place To Live
Blood
Water
Food
Answers
Answer:
its blood water food
Explanation:
hope this help the person above me is correct
Answer:
your answers are
B. a place to live
D. water
E. food
Explanation:
In cats, black fur is dominant to orange fur. Brown eyes are dominant to green eyes. Cross a Homozygous black-furred, heterozygous brown eyed cat with an orange lurred, heterotygous brown eyed cal Give the
# of the offspring by phenotype. (MAKE A PUNNET SQUARE PLEASE)
Answers
Complete dominance occurs when the dominant alleles hides the expression of the recessive allele. 12/16 individuals will be black with brown eyes (4/16 BbGG + 8/16 BbGg). 4/16 individuals will be black with green eyes (4/16 Bbgg).
What is complete dominance?
Complete dominance is the inheritance pattern in which one of the alleles dominates over the other one, and when they are together in the same genotype, only the dominant allele is expressed.
Heterozygous individuals express the dominat phenotype coded by the dominant allele, while the recessive allele's expression remains hiden.
In the exposed example, we have two genes coding for different features and expressing complete dominance,
- Fur color
The dominat allele codes for black, BThe recessive allele codes for orange, b- Eye color
The dominat allele codes for brown, GThe recessive allele codes for green, gCross: Homozygous black-furred, heterozygous brown eyed cat with an orange, heterotygous brown eyed cat
Homozygous black-furred: BBHeterozygous brown eyed: GgOrange: bbParentals) BBGg x bbGg
Gametes) BG, Bg, BG, Bg bG, bg, bG, bg
Punnett square) BG BG Bg Bg
bG BbGG BbGG BbGg BbGg
bG BbGG BbGG BbGg BbGg
bg BbGg BbGg Bbgg Bbgg
bg BbGg BbGg Bbgg Bbgg
F1)
8/16 individuals are expected to be heterozygous for both features, BbGg4/16 individuals are expected to be heterozygous for fur color and homozygous dominant for eye color, BbGG4/16 individuals are expected to be heterozygous for fur color and homozygous recessive for eye color, Bbgg12/16 individuals are expected to have black fur and brown eyes4/16 individuals are expected to have black fur and green eyes12/16 individuals will be black with brown eyes (4/16 BbGG + 8/16 BbGg)
4/16 individuals will be black with green eyes (4/16 Bbgg)
Phenotyipic ratio ⇒ 3:1
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"how does this interaction differ from the interactions that can occur between other amino acid side chains?"
a this bond is polar b this bond is covalent c this is a double bond d this bond is nonpolar
Answers
The interaction between amino acid side chains can differ depending on the type of bond that is formed.
In this case, the options given are a polar bond, a covalent bond, a double bond, and a nonpolar bond.
A polar bond is formed when two atoms share electrons unevenly, resulting in a partial positive charge on one end of the bond and a partial negative charge on the other end. This type of interaction is different from a nonpolar bond, which is formed when two atoms share electrons evenly and have no partial charges.
A covalent bond is formed when two atoms share electrons in order to complete their outermost electron shells. This type of interaction is different from a double bond, which is formed when two atoms share two pairs of electrons.
Overall, the type of bond formed and the charge distribution within the bond affect the interactions between the side chains of the amino acids.
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What is yhe role of decomposers in an ecosystem?
Answers
Why is the sugar-phosphate backbone important?
Answers
Sugar phosphate backbone of a DNA gives it a definite structure and prevents the DNA from collapsing.
The double helix structure of DNA's sugar-phosphate backbone is crucial. DNA's function and structure are related. The capacity of DNA to store and transmit genetic information is greatly influenced by the pairing of the nitrogenous bases that are joined to the sugar-phosphate backbone. The nucleotides in a DNA sequence are joined by an alternating grey-dark grey sugar-phosphate backbone. This molecule's directionality is determined by its backbone, which is made up of alternating sugar and phosphate groups.
The bases of DNA and RNA may build proteins and be passed on to new cells thanks to the structure of these molecules, which is maintained by the phosphate and sugar groups. As intermediates in the metabolism of carbohydrates, sugar phosphates, which are phosphoric acid esters of monosaccharides, are produced. Ribose phosphate and deoxyribose phosphate, two of these substances, are components of nucleotides and nucleic acids.
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This a question that you need to apply knowledge of both the digestive system AND biochemistry. You eat
salad with chopped cucumbers, tomato, onion, and Feta cheese with olive oil. Describe the path through the
digestive system of this meal describing how EACH BIOMOLECULE of the meal is digested and absorbed. Discuss all of the organs and enzymes involved.
Answers
The main biomolecules present in the meal are carbohydrates but there are also proteins and lipids.
First of all starch will be hydrolysed in the mouth.Saliva contains an enzyme called amylase that turns starch into dextroses and maltose.
In the stomach the HCl will activate the pepsinogen and it will become pepsin that will hydrolise proteins to albumoses and peptones.
Also in the stomach an enzyme called gastric lypase is present which turns lipids into glycerol and fatty acids.
In the duodenum:The pancreas releases pancreatic amylase which turns starch into maltose. It releases pancreatic lypase which turns lipids into fatty acids and glycerol. It releases proteolytic enzymes(trypsin, chemotrypsin, carboxypetidase, elastase, collagenase) which turn proteins, albumoses and peptones into oligopeptides(3-4 aminoacids) and aminoacids.
In the rest of the small intestines enzymes secreted by the cells that line the small intestine work. Oligopeptidases turn oligopeptides into aminoacids. Maltase turns maltose into 2 molecules of glucose. Sucrase turns sacrose into 1 molecule of glucose and one of fructose. Lactase turns lactose into 1 molecule of glucose and 1 of galactose. The intestinal lypase turns lipids into glycerol and fatty acids.
Mouth
1.Starch----(salivary amylase)--->maltose+dextrose
Stomach
2.lipids---(gastric lypase)---->glycerol+fatty acids
3.proteins---(pepsin)--->albumoses and peptones
Duodenum
4.Starch---(pancreatic amylase)--->maltose
5.lipids--(pancreatic lypase)--->glycerol+fatty acids
6.proteins+albumoses+peptones---(trypsin,chemotrypsin,carboxypeptidase,elastase collagenase)--->oligopeptides+AA
Small intestine(Jejunum and ileon)
7.maltose---(maltase)--->2glucose
8.sacrose---(sacrase)--->glucose+fructose
9.lactose---(lactase)--->glucose+galactose
10.lipids---(intestinal lypase)--->glycerol+fatty acids
11.oligopeptides---(oligopeptidase)--->amino acids
Match the Epigenetic modification to the true statement about it. Non-coding RNAs ✓ Choose... Disrupts protein synthesis & mRNA cleavage Histone modificatio Binds RNA & triggers translation Activates Translation Methylation Addition of a group to DNA which prevents transcription Relaxes chromatin & permits transcription Attached to DNA to trigger DNA degradation Imprinting is a form of Epigenetic regulation, that has important implications for Protein Genetic RNA Gene Expression Neurodevelopment Fertility Immunity
Answers
Sure, here is the matching of epigenetic modification to the true statement about it:
| Epigenetic modification | True statement |
|---|---|
| Non-coding RNAs | Binds RNA & triggers translation |
| Histone modification | Relaxes chromatin & permits transcription |
| Methylation | Addition of a group to DNA which prevents transcription |
| Imprinting | A form of epigenetic regulation, that has important implications for neurodevelopment, fertility, and immunity |
Here is a 25-word main answer:
Epigenetic modifications are changes to DNA that affect gene expression without changing the DNA sequence.
Here is an 80-word explanation:
Epigenetic modifications are changes to DNA that affect gene expression without changing the DNA sequence. They can be caused by environmental factors, such as diet and stress, or by inherited factors. Epigenetic modifications can be passed on from parent to offspring, and they can have a significant impact on health and disease.
Some examples of epigenetic modifications include DNA methylation, histone modification, and non-coding RNAs. DNA methylation is the addition of a methyl group to a DNA molecule. This can silence genes by making it more difficult for them to be transcribed. Histone modification is the addition of chemical groups to histone proteins, which are involved in packaging DNA. This can alter the structure of chromatin, which can affect gene expression. Non-coding RNAs are RNA molecules that do not code for proteins. They can regulate gene expression by binding to DNA or RNA, or by recruiting other proteins that affect gene expression. epigenetic modifications are a complex and rapidly evolving field of research. There is still much that we do not know about them, but they are an important area of study for understanding how our genes affect our health and disease.
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true or false? 2 questions
all cells in an organism have the same genes?
All cells in an organism express the same genes?
Answers
Helpppppppppppppppppppppppppppppppppp
Answers
Answer:
umm i dont understand your question
Explanation:
The giant panda is descended from carnivorous ancestors. however, meat became scarce in the giant panda's environment. today, giant pandas eat meat when it is available, but they primarily eat bamboo. which term best describes the giant panda's change in diet from primarily meat to primarily plants?
Answers
The giant panda's change in diet from primarily meat to primarily plants is environmental change.
Why did giant pandas stop eating meat?They discovered that there is a transformation in the T1R1 gene. The gene encodes for T1R1 protein which is an umami taste receptor. The transformation turns T1R1 into a pseudo gene: a gene which is not extended represented.
As a result, pandas cannot taste the umami taste of flesh and slowly lost an appeal to meat.
Thus, this could be the answer.
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explain adolsense and puberty
Answers
Answer:
Adolescence is the time between the beginning of sexual maturation (puberty) and adulthood. It is a time of psychological maturation, which a person becomes "adult-like" in behavior. Adolescence is considered to be the period between ages 13 and 19.
Explanation:
HOPE IT HELPS
which of the following are possible functions of the glycocalyx
Answers
The glycocalyx has several important functions, including acting as a protective barrier, facilitating cell-cell recognition and adhesion, participating in cell signaling, and providing lubrication.
The glycocalyx is a layer of carbohydrates that coats the outer surface of animal cells. It is composed of glycoproteins and glycolipids, which are molecules made up of proteins or lipids with attached carbohydrate chains.
The glycocalyx has several important functions:
protective barrier: The glycocalyx acts as a protective barrier, preventing mechanical damage to the cell surface. It helps shield the cell from physical forces and can also provide protection against pathogens.cell-cell recognition and adhesion: The glycocalyx plays a crucial role in cell-cell recognition and adhesion. It allows cells to recognize and interact with each other, facilitating the formation of tissues and the coordination of cellular activities.cell signaling: The glycocalyx is involved in cell signaling, helping to transmit signals between cells. It can act as a receptor for signaling molecules, allowing cells to respond to external cues and communicate with each other.lubrication: The glycocalyx can serve as a lubricant, reducing friction between cells and their environment. This is particularly important in tissues that experience mechanical stress, such as blood vessels.Overall, the glycocalyx is essential for maintaining cell structure and function. It provides protection, facilitates cell-cell interactions, enables cell signaling, and helps reduce friction.
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Which molecules contain only carbon, hydrogen, and oxygen?
Select all that apply.
carbohydrates
glucose
proteins
O nucleic acids
Answers
\( \huge \purple{\tt{Answer:}} \)
glucose
The molecule here that contains only carbon, hydrogen, and oxygen is Glucose. So the correct option is B.
What is glucose?Glucose is a monosaccharide or simple sugar. It is a kind of sugar found in honey and fruits. Glucose is the major sugar present in our body.
It is the main source of cellular energy utilized in the process of cellular respiration. Thus, it helps in proper cell functioning and metabolism.
Starch molecules are composed of various monomers of glucose. They are the polysaccharides of glucose. The structural formula for glucose is C₆H₁₂O₆. This means that glucose is only composed of carbon hydrogen and oxygen atoms.
Glucose is a type of Carbohydrate but there are other kinds of carbohydrates that contain elements like nitrogen and sulfur. Proteins and nucleic acids also contain other elements like phosphate, nitrogen, and sulfur.
Thus only glucose is composed of oxygen, carbon, and hydrogen.
Therefore the correct option is B.
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Scientists have been studying the size of three populations in Peru. In this ecosystem, pumas (large wild cats) eat deer, and deer eat grass. The data showed that all three populations were stable. Then the puma population increased suddenly. What will most likely happen to the size of the deer population as a result?
Answers
Explanation :
The Puma population would need more energy and food source, leading to a decrease in the deer population.
Answer:
hen the puma population in an ecosystem increases suddenly, it is likely to have an impact on the size of the deer population.
Here's what might happen to the deer population as a result:
1. Increased predation: With more pumas in the ecosystem, there will be a higher number of predators hunting deer. This means that the pumas will be consuming more deer than before, leading to a decrease in the size of the deer population.
2. Competition for resources: As the puma population grows, there might be increased competition between pumas and deer for resources such as food and shelter. This competition could further impact the deer population by limiting their access to essential resources and potentially reducing their population size.
3. Altered behavior of deer: Due to the increased presence of pumas, deer may alter their behavior to avoid predation. They might change their feeding patterns, become more vigilant, or avoid certain areas. These behavioral changes could have indirect effects on the deer population, possibly leading to changes in their distribution and population size.
4. Cascade effects: The changes in the deer population can also have indirect effects on other organisms in the ecosystem. For example, a decrease in the deer population could lead to an increase in the availability of grass, which may then affect other herbivores or plants in the ecosystem. These cascade effects can further influence the overall dynamics of the ecosystem.
It's important to note that while these are potential outcomes, the actual impact on the deer population would depend on various factors such as the rate of puma population increase, availability of alternative prey, and the resilience of the deer population to predation pressure. Studying such interactions in ecosystems helps scientists understand the complex dynamics that shape populations and maintain ecological Balance
1. Describe how the heart pumps
that enables blood to flow in one
direction through the heart.
Answers
Answer:
As the heart pumps blood, a series of valves open and close tightly. These valves ensure that blood flows in only one direction, preventing backflow. The tricuspid valve is situated between the right atrium and right ventricle.
Explain the main difference between how mountain glaciers and continental glaciers move.
Answers
C cells of the thyroid gland secrete __________. C cells of the thyroid gland secrete __________. tetraiodothyronine cortisol calcitonin triiodothyronine
Answers
C cells of the thyroid gland secrete calcitonin.
What does C cells of thyroid gland produce?The thyroid follicle, which is the gland's active component, is encircled by a single layer of epithelial cells, and the lumen is stuffed with colloidal material. It includes parafollicular cells, or C cells, which release calcitonin.The C-cells of the thyroid gland secrete calcitonin, a 32 amino acid hormone.When the concentration of blood calcium has grown over the usual range, the thyroid gland releases the hormone calcitonin, which lowers the level. The parafollicular cells, sometimes referred to as the C cells, of the thyroid gland are the principal producers of this polypeptide hormone, which has 32 amino acids.Learn more about thyroid gland here:
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Disclaimer: The question was given incomplete on the portal. Here is the complete question.
Question: The C cells of the thyroid gland secrete
a) TSH.
b) parathormone.
c) thyroxine.
d) triiodothyronine.
e) calcitonin
in a tabular form state the sources, functions and deficiency of fat soluble vitamins
Answers
Answer and Explanation:
Soluble vitamins are vitamins A, D, E and K.
Vitamin A is easily found in animal foods such as eggs, milk, cheese, meat, among others. It has the function of improving vision, producing antioxidants and improving immunity. its deficiency causes nocturnal tracking and susceptibility to infections.
Vitamin D has the sun as its major source, but it can also be found in fish, seafood, liver, mushrooms and meat. It is important for the growth and strengthening of bones, growth regulation, metabolism, insulin production and strengthening of the cardiovascular, muscular and immune systems. Its deficiency can provoke muscular and bone pains, spasms, intense weakness and calcium deficiency.
Vitamin E has many sources, among which we can mention wheat, vegetable oils, nuts, sunflower seeds, bananas, soybeans, egg yolks, almonds, eggs, spinach, lettuce, among others. Its main function is to act as a powerful antioxidant, slowing premature aging and diseases such as cancer, Parkinson's and cataracts. Its deficiency can cause loss of motor coordination, weakening of the muscles and anemia.
Vitamin K can be found in lettuce, spinach, mustard, broccoli, cucumber, turnip, asparagus, okra, liver, among others. It is important in blood clotting and calcium fixation. Its deficiency can cause defective clotting and bleeding.
A sterile mule is produced by mating a horse and a donkey. From this observation you could conclude?
Answers
From the observation, it can be concluded that the horse and the donkey are of different species, and the offspring, a mule, is sterile.
When a horse and donkey mate, the offspring they produce is called a mule. This is because the horse and the donkey are of different species, and their offspring is a hybrid.
Mules are sterile because they have an odd number of chromosomes, which makes it difficult for them to produce viable gametes. Therefore, they are unable to produce offspring.
When a horse and a donkey mate, they produce an offspring known as a mule. However, the mule is sterile and cannot produce offspring. This is due to the difference in the number of chromosomes between the horse and donkey.
Horses have 64 chromosomes while donkeys have 62. When they mate, the offspring receives 63 chromosomes. This makes the mule sterile since the chromosome number is an odd number.
Mules are usually used for work because they are stronger than horses and can carry heavier loads. They are also less stubborn and more patient than donkeys, making them easier to work with.
The fact that the mule is sterile has prevented the breeding of horses and donkeys to produce mules.
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What are the three parts of cell that is important?
Answers
Answer:
The cell membrane, The cytoplasm, and The nucleus.
Hope this helps!
Explanation:
Answer:
the cell membrane, the nucleus, and, between the two, the cytoplasm.
Explanation:
Compared to the Haida myth, which focuses on creating light and people, the Māori myth focuses mostly on.
Answers
Answer:
The correct answer would be.. The Relationship between parts of nature.. hope this helped, stay safe!
Algae are green plants.
The figure below shows the number of algae in a lake in the United Kingdom during
one year.
number of
algae
Jan
Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
month
Explain the changes in the number of algae in the lake from February to June (3)
ANSWER
Answers
Answer:
Kindly check explanation
Explanation:
According to the graph given the number of algae is represented on the y axis while the month of the year is represented on the x - axis of the graph. The change in the number of algae from February is clearly depicted by an upward slope along the y-axis which means that there is continous increase in the Number of algae in the lake during this period, that is between February to June . It could also be seen that around June the optimal number of algaae is achieved as the number of algae tend to fall as we move beyond June.
cell differentiation can occur when different proteins are manufactured as a result of cells producing different types of
Answers
Cell differentiation can occur when different proteins are manufactured as a result of cells producing different types of Nitrogenous bases
A stem cell changes from one type to another throughout the process of cellular differentiation. The cell typically transforms into a more specialized type.Gene expression alterations are responsible for these changes. The transformation of a single-celled zygote into a multicellular embryo and then into the complex multisystem of several cell types that is a fetus is an illustration of cell differentiation.To know more about cell here
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antibiotics can lead to septic shock if used to treat antibiotics can lead to septic shock if used to treat gram-positive bacterial infections. gram-negative bacterial infections. protozoan infections. viral infections. helminth infestations.
Answers
Antibiotics can lead to septic shock if they are used to treat gram-negative bacterial infections.
What is septic shock?Septic shock is a life-threatening condition that occurs when blood pressure drops to a very low level after an infection and any type of bacteria can cause the infection.
Sepsis and septic shock can result from an infection that may be anywhere in the body like pneumonia, influenza, urinary tract infections or even from a cut on the finger that becomes infected. Sepsis can also cause abnormal blood clotting that results in small clots or burst blood vessels that damage tissues. Most of the people recover from mild sepsis but mortality rate for septic shock is about 40%.
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what physiological events occur between presentation and the pressing of the hand switch?
Answers
Physiological events such as sensory perception, neural processing, and motor response occur between presentation and the pressing of the hand switch.
When a stimulus is presented, sensory receptors in the body detect the stimulus and convert it into electrical signals. These signals are then transmitted to the brain through sensory pathways. In the brain, the signals are processed and interpreted, allowing for the perception and recognition of the stimulus. Once the stimulus is recognized, motor commands are generated in the brain and transmitted through motor pathways to the muscles responsible for hand movement. These commands initiate muscle contractions, leading to the pressing of the hand switch.
Overall, this sequence of physiological events involves sensory input, neural processing, and motor output, enabling the individual to perceive the stimulus and respond accordingly.
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Which of the following statements accurately describes the rock cycle?
Question 1 options:
A. Sedimentary, igneous, and metamorphic rocks are formed and broken down
B. The rock cycle only describes the formation of rocks, not the transportation or deposition
C.The rock cycle only describes the formation of rocks above ground
D.The rock cycle only describes how igneous rocks are formed
Answers
Answer: The Answer would be A
Explanation:
What is the primary source of energy in a food chain?
oxygen
sun
carbon dioxide
water
Answers
Answer:
The sun is the primary source of energy in a food chain.
Explanation:
By having sun light shining directly onto plants, it causes the plants to produce chemical energy that is able to sustain all their cellular functions.
Hope this helps! :)
Question 12
Please place the steps of primary succession in order from from first (top) to last (bottom).
Reorder answers
1. Exposed bare rock due to volcanic eruption or glacier
2. Pioneer species arrives (like lichen)
3. Deciduous tree move in
4. Small plants start to grow
5. Evergreen trees start growing
6. Soil starts forming and mosses begin growing
Answers
Answer:
Here are the steps of primary succession in the correct order:
Exposed bare rock due to volcanic eruption or glacier
Pioneer species arrives (like lichen)
Small plants start to grow
Soil starts forming and mosses begin growing
Deciduous trees move in
Evergreen trees start growing
Which of the following is not one of planes and sections of body orientation?
Answers
Answer:
They are the median plane, sagittal planes, coronal (frontal) planes and horizontal (transverse) planes
Mouth-shaped openings in the epidermis of plants are called
stomata
cutin
hairs
dermis.
Answers
Stomata are pores on the surface of the leaves and other aerial parts of most higher plants. The Final answer is stomata.
I hope this helps!