The "calico" pattern of coat coloration in female cats is a result of:__________
a. fragile X syndrome
b. x chromosome inactivation
c. unequal crossing over
d. endoreduplication
e. Turner syndrome

Answers

Answer 1

Answer:

b. x chromosome inactivation

Explanation:

As you know, female cats have an x chromosome inherited from their mother and an x chromosome inherited from their father. After these two chromosomes are inherited and determine the sex of the cat, one of them will be disabled at some point in fetal development. Inside the X chromosome is the gene that determines the coat color of cats, when one of the two x chromosomes is deactivated, the other x chromosome will have all of its cells activated. In this case, if the activated chromosome is the one that has genes for the "cheetah" pattern of the coat color, all the descendants of this female cat also have the same coat.


Related Questions

What are the only types of
cells to contain a cell
membrane?

Answers

Answer:

Plant Cells

Explanation:

the all-or-none response of a neuron is similar to:

Answers

Answer:

The all-or-none law is a principle that states that the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus. If a stimulus is above a certain threshold, a nerve or muscle fiber will fire.

The all-or-none response of a neuron is similar to a gun that either fires or doesn't. The correct option is B.

What is an all-or-none response?

According to the all-or-none principle, signal transmission between neurons is solely dependent on the initial threshold being met rather than the stimulus's intensity.

In other words, neurons either fully or totally avoid transmitting an impulse via the synapse to the subsequent neuron.

According to the all-or-none law, the strength of a nerve cell's or a muscle fiber's response is not influenced by the stimulus's intensity.

A nerve or muscle fiber will activate if a stimulus is present above a predetermined threshold.

Therefore, the correct option is B. a gun that either fires or doesn't.

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The question is incomplete. The missing options are given below:

A. a dimmer switch that can provide a wide range of light.

B. a gun that either fires or it doesn't.

C. a fuse that cannot overload the circuits.

D. a match that doesn't always light when it is struck.

I hate biology and the teacher can you help me with this question

Answers

Answer:

B

Explanation:

Which of the following is nota cation? mercurous ion sulfate Ca 2+ iron(III) ion

Answers

I have no clue but I just want the thanks

I am full of cones that make images clear. If you didn’t have me, you’d still see but you’d be worse for the wear. What part of the eye am I?

Answers

It would be "Retina"

Hope it helped.

Thank You

how is sexual reproduction in plants become evolved to become less dependent on water?

Answers

Answer:

The Gymnosperms and Angiosperms are groups of plants with seed, which means that they don't necessary acquire water for fertilization. ... The sperm (male gamete) of gymnosperms is enclosed in a pollen grain. Thi structure is protected from desiccation and can reach the female organs without dependence on water.

Explanation:

PLEASE ANSWER ASAP!!!! 15 PTS The subunits of nucleic acids are A. nucleotides. B. oils. C. sugars. D. amino acids.

Answers

Answer:

A. Nucleotides

Explanation:

Nucleic acids are composed of smaller subunits called nucleotides. A nucleotide is a nucleoside with one or more phosphoryl group by esterlinkage. When it is in the form of RNA the bases are called adenylate, guanylate, cytidylate, and uridylate.

Amino acids associate with [protein] so it’s not “D.”
Sugars associate with [carbs] so it’s not “C.”
Oils associate with [lipids] so it’s not “B.”

Nucleotides associate with [Nucleic acids] so it’s “A.”

Which cell type undergoes terminal differentiation?
A-epithelial cells
B-stem cells
C-heart cells
D-hair cells

Answers

Stem cells are the cell type that undergoes terminal differentiation.

STEM CELLS:

Stem cells are cells in animals that are capable of differentiating into any cell type.

Differentiation of a cell implies that the cell becomes more specific in its function.

Stem cells undergo mitotic division to produce one daughter cell that is a stem cell and another daughter cell that has differentiated.

Stem cells undergo terminal differentiation into specific cell types such as epithelial cells, muscle cells, heart cells, hair cells, blood cells etc.

Therefore, stem cells are the cell type that undergoes terminal differentiation.

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The fire extinguisher can ONLY be used by the teacher in an emergency

True
False

Answers

False. Probably I don’t have much context

UESTION 22
The human population has been able to grow exponentially
due to man's ability to manipulate resources.
true or false

Answers

Answer:

false

Explanation:

the answer is false



Explimation:

What is the most important life processes in cells?

Answers

processes that are most important to human life are oxygen, required for cellular respiration, and glucose, a form of sugar that releases energy during cellular respiration.

Answer:

oxygen, and glucose

Explanation:

Two of the chemicals and chemical processes that are most important to human life are oxygen, required for cellular respiration, and glucose, a form of sugar that releases energy during cellular respiration.

hope this helps you:)

The monomers of proteins (select all that apply)

polypeptides
amino groups
amino acids
R groups

Would the answer just be Amino Acids? I selected all 4, but that was wrong, so I am thinking it might just be Amino Acid or (Amino Acid+polypeptides)?

Answers

Answer:

amino groups

amino acids

R groups

Explanation:

I think these are right.

Because a polypeptide chain is polymer of amino acids that are linked together so that mean a polypeptide chain is protien.

DNA differs from RNA because DNA
contains the sugar ribose rather than the sugar deoxyribose.
consists of a single rather than a double polynucleotide strand.
contains phosphate groups not found in RNA.
contains thymine in place of uracil.

Answers

Answer:

Yes all above difference is correct

Question 1
Choose all that apply: The cells in the human body that undergo mitosis are:
a
skin cells
Ser cells
liver cells
muscle cells

Answers

Answer:

liver skin and muscle cells

Explanation:

The cells in the human body that undergo mitosis are -

skin cells  liver cellsmuscle cells

Cell division is the process of producing new daughter cells from existing parent cells. The types of cell division include mitosis and meiosis.

Mitosis takes place in all eukaryotic cells which is a process of cell renewal and growth.Somatic cells, adult stem cells, and the cells in the embryo are the main cells that undergo mitosisSomatic cells are the regular cells in the body of multicellular organisms such as muscle, liver, and skin cells.

Thus, The cells in the human body that undergo mitosis are -

skin cells  liver cellsmuscle cells

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1. How many cells would you expect to find in a multicellular organism?

Answers

Answer:Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells

Explanation:

Answer:

Hmm.

Explanation:

Organisms made up of more than one cell are categorized as multicellular organisms.

describe the impact of technology on the environment today

Answers

Technology has highly impacts our lives and with what we do. People use technology everyday, whether it’s tracking down a location or just simply calling someone. Without all the advance technology we have today our lives wouldn’t be as easy as it is right now.

There are other bacteria that use the ammonium in the water as a nitrogen source and take it up to make organic nitrogen and new bacteria. When they do this and hold the nitrogen inside bacterial cells, it is called​

Answers

Answer:

nitrogen

Explanation:

hope this helps :)

What is an example of how technology is capable of changing society?

Answers

Technology can alter community through what becomes famous , like the cell phones that most people today have with them, and the fact that they have developed into phones with computer ability.

There are certain situation that arise as a outcome of a growing use of technology that impact the change, like Carpal Tunnel Syndrome causing shifts in the workplace, or a growing need for more technology like floppy discs changing to compact discs and DVD's.

How does technology change society?

Technology has a more favourable impact on humans or society in comparision of negative impact.

It makes our life is more easier and cite us by providing resources or tool that make our life much easier.

Thus, Technology can Alter society through what becomes famous, like the cell phones that most people today keep with them, and the fact that they have developed into phones with computer ability.

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Answer:

Technology can alter community through what becomes famous , like the cell phones that most people today have with them, and the fact that they have developed into phones with computer ability.

There are certain situation that arise as a outcome of a growing use of technology that impact the change, like Carpal Tunnel Syndrome causing shifts in the workplace, or a growing need for more technology like floppy discs changing to compact discs and DVD's.

Explanation: edgen 100%

A polymer can be broken down into many monomers
O True
O False

Answers

Answer:

please mark brainliest!

Explanation:

Polymers are broken down into monomers in a process known as hydrolysis, which means “to split water,” a reaction in which a water molecule is used during the breakdown. During these reactions, the polymer is broken into two components.

When would a model be most beneficial to a scientist?
A. when a scientist wants to do a hands-on experiment

B.when a scientist wants to represent things that are either very large or very small

C.when a scientist wants to be creative

D.when a scientist doesn't want to confuse other scientists

Answers

Answer:

I believe it is A

Explanation:

Based on the information in the graph, choose the statement that best describes the reaction it depicts. A. The reaction absorbs energy. B. The reaction releases energy. C. The reaction fails to proceed because of insufficient energy. D. The reaction fails to proceed because it does not involve an energy change.

Answers

Answer:

The answer is B the reaction releases energy.

Explanation:

As per the graph, the reaction will release energy. The correct option is B.

What is exothermic reaction?

A heat-producing task is an exothermic process. This heat is conveyed to the external environment. Endothermic processes require heat to be supplied to the system from outside the system.

Exothermic reactions are heat-producing chemical reactions. When heat flows from the system to the surroundings, the heat flow q is negative. Exothermic reactions, therefore, have a negative enthalpy of reaction.

Thus, the correct option is B.

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The chart below lists different plant species with a description of adaptations. Plant Species Adaptation Turkey Feet Grass This plant has very deep roots to prevent soil loss in windy areas, and to help anchor the plant. Pinkflower Hedgehog Cactus Contains spines for protection, and a waxy coating on the sunny side of the plant to help prevent water loss. Devil’s Walking Stick Secrete chemicals as a defense mechanism, and have broad leaves to catch sunlight in shady areas. Hairy Manzanita Pale pink flowers attract humming birds for pollination. Which plant species above is best adapted for a grassland biome? a Turkey feet grass b Pinkflower hedgehog cactus c Devil's walking stick d Hairy Manzanita

Answers

Answer:

A) Turkey feet grass

Explanation:

Grassland biome is one of the biomes that makes up the Earth's biosphere. Due to the characteristics of this biome (grassland), it favours the abundance of grass species over trees and shrubby plants. These characteristics include a low annual rainfall, soil's susceptibility to wind erosion etc.

Based on these characteristics, an organism that will thrive in this biome must be structurally adapted to it. This is the case of the Turkey feet grass mentioned in the question. The Turkey feet grass possess very deep roots to prevent soil loss in windy areas, and to help anchor the plant. This is as a result of soil loss common to the soil of grassland biomes.

On the pH scale, a 7 indicates _____. neutrality an acid a base

Answers

Answer:

a 7 indicates neutrality

less than 7 is an acid

more than 7 is an alkaline, or a base

Explanation:

your pH scale ranges from 0-14

7 is neutral

less than 7 is an acid

more than 7 is an alkaline, or a base

Answer:

Neutrality

Explanation:

Explain negative feedback.

Answers

This occurs when a function of the output of a system or process is fed back, reducing the changes in the output.

Why do living things share fundamental characteristics

Answers

Answer:

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

Life processes are important to carry out daily life activities. They help to produce energy and maintain homeostasis in the body. The life processes help a body survive with the changes in the environment.

There are several fundamental characteristics or capacities that all living things share, including order, environmental sensitivity or responsiveness, reproduction, growth and development, regulation, homeostasis, and energy processing.

What fundamental characteristics share by living things?

All living things share certain basic characteristics or functions, such as order, sensitivity to their environment, growth and development, reproduction, regulation, homeostasis, and the ability to process energy.

These characteristics work to define what it means to live. These characteristics collectively contribute to the definition of life. All of these characteristics will be found in living things.

All living things share the capacities to procreate, grow and develop, use energy, maintain homeostasis, respond to their environment, and be adaptable.

Therefore, all living things share fundamental characteristics.

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Which is an example of competition within a species?
O A. a pack of hungry wolves hunting prey
B. a cougar showing her cub how to hunt
Oc male elk fighting in a display of dominance
OD. plants in a dense forest struggling for sunlight

Answers

Answer: A
Explanation: they are hungry so they are going to fight over their food

PLEASE HELP ME PLEASEE!!!!! VERY EASY FOR SOME

Answers

Answer:

they would absorb

Explanation:

hopes that helps

Which statement describes Redi’s experiment, which helped disprove spontaneous generation?

He examined covered and uncovered meat to determine that maggots came from eggs.
He heated milk to show that it could destroy bacteria.
He wrote a book on how cells come from other cells through reproduction.
He showed that the shape of a flask was important to the experiment.

Answers

Answer:

a

Explanation:

Answer:

A

Explanation: He examined covered and uncovered meat to determine that maggots came from eggs.

Which two organelles work together to create a functional protein.

Answers

Answer:

J

Explanation:

The two organelles that work together to create a functional protein are the ribosome and the endoplasmic reticulum (ER).

What if the function of ER and ribosome?

The ribosome is responsible for synthesizing the protein, while the endoplasmic reticulum provides the environment in which the protein can fold into its functional 3-dimensional structure.

In the cytoplasm, the ribosome reads the genetic information in messenger RNA (mRNA) and uses it to assemble a chain of amino acids, forming a protein. The ribosome then transfers the newly-formed protein to the endoplasmic reticulum.

The endoplasmic reticulum is a network of membranes that runs throughout the cytoplasm. It is involved in many cellular processes, including the folding and modification of newly-synthesized proteins. In the ER, the protein undergoes a series of post-translational modifications, such as the addition of carbohydrates, lipids, or phosphate groups. These modifications help the protein fold into its functional 3-dimensional structure and determine its final function in the cell.

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Which statement gives an advantage of multicellular organisms?

They can perform more functions.

They can reproduce quickly.

Their size allows them to maintain structure easily.

One cell performs all of the necessary functions.

Answers

Answer:

D

Explanation:

Bacteria can reproduce quickly which is why it is sometimes hard to get rid of a cold.

Both types of cells carry out necessary functions to survive.

Size does not define a cell.

Multi-cellular organism have complex cell structure in which each cell has the ability to tend to it's necessary functions.

Hope this helps :)

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