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3 years ago

Please help me I will give you my SOUL if you answer

Biology

1 answer:

Mariana [72]3 years ago

6 0

Answer:

Tumour Suppressor genes

Explanation:

Tumour Suppressor genes can stop the cell from growing and dividing but only when the damage is really bad. Mutations in tumour Suppressor genes mean that a cell can no longer understand the instruction to stop growing.

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The enlargement of the somatosensory area for dominant fingers in violin players is an example of the effects of __________ on b

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Personal experience on edgenuity

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3 years ago

Read 2 more answers

PLEASE HELP WILL GIVE BRAINEST TO THE FIRST ONE PLUS POINTS!

valentinak56 [21]

Answer:

4. A

4.(part 2) B

6. C

7. A

8. C

9. A

10. B

11. C

12. D

13. C

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I Really hope this was helpful to you i tried my best to answer all the questions

Explanation:

8 0

3 years ago

A) Compare and contrast diffusion, passive transport (diffusion & facilitated), primary active transport and secondary activ

zheka24 [161]

Answer:

Passive transport: It does not need any energy to occur. Happens in favor of an electrochemical gradient. Simple diffusion and facilitated diffusion are kinds of passive transport.

Simple diffusion: molecules freely moves through the membrane.

Facilitated diffusion: molecules are carried through the membrane by channel proteins or carrier proteins.

Active transport needs energy, which can be taken from the ATP molecule (Primary active transport) or from a membrane electrical potential (Secondary active transport).

Explanation:

Diffusion: This is a pathway for some small polar hydrophilic molecules that can freely move through the membrane. Membrane´s permeability depends on the size of the molecule, the bigger the molecule is, the less capacity to cross the membrane it has. Diffusion is a very slow process and to be efficient requires short distances and pronounced concentration gradients. An example of diffusion is osmosis where water is the transported molecule.

Facilitated diffusion: Refers to the transport of hydrophilic molecules that are not able to freely cross the membrane. Channel protein and many carrier proteins are in charge of this passive transport. If uncharged molecules need to be carried this process depends on concentration gradients and molecules are transported from a higher concentration side to a lower concentration side. If ions need to be transported this process depends on an electrochemical gradient. The glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.

Simple diffusion and facilitated diffusion are passive transport processes because the cell does not need any energy to make it happen.

Active transport occurs against the electrochemical gradient, so it does need energy to happen. Molecules go from a high concentration side to a lower concentration side. This process is always in charge of carrier proteins. In primary active transport the energy needed comes from the ATP molecule. An example of primary active transport is the Na-K bomb. In secondary active transport, the energy comes from the membrane electric potential. Examples of secondary active transport are the carriage of Na, K, Mg metallic ions.

7 0

3 years ago

A man with the autosomal recessive disorder phenylketonuria (PKU) and a woman without PKu heve a son named Peter, who does not h

Anton [14]

Answer:

<h2>2. Peter's maternal grandfather has PKU.</h2>

Explanation:

Such type of the genetic disorder in which two copies of a gene must be mutated at a time is called autosomal recessive disorder such as sickle cell anemia, phenylketonuria, and some other diseases.
When a sing copy of a gene is mutated in a person then this disorder is not appeared and the person is called a carrier.
So when a child is born by two carrier parents then there is a chance that a child will be affected if both the parents donate mutated genes.
In the case of Peter, since peter does not show this defect this means his maternal grandfather was affected by this disorder.

5 0

3 years ago

What are the different versions or variety of a gene called

Triss [41]

An allele. It’s a variant of a cell.

7 0

2 years ago