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My name is Ann [436]
3 years ago
15

I have 5 questions i need help on please help

Biology
1 answer:
Hoochie [10]3 years ago
7 0

1. Is 23 because we all have 46 so half is 23

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6) If a mutation happens in a cancer-causing gene to change the subsequent protein's function,
Aneli [31]

Explanation:

B) False

Multiple mutations in several protooncogenes and tumor suppressor genes are required to form cancer

Cancer-causing genes, or oncogenes, develop from protooncogenes which regulate normal cell division. They may undergo mutations that alter gene expression, disrupt cell regulation and lead to the transformation of normal cells into tumor cells- their resulting proteins are abnormal or not formed. Tumor suppressor genes, which can halt unregulated cell growth and division, may also become mutated.

Each individual inherits 2 copies of a gene from their parents- a single mutation in one of these does not directly lead to cancer. Multiple activated oncogenes, in turn produce damaged, non functional proteins and together contribute to forming cancers.

Further Explanation:

During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

  • somatic: these only occur within certain cells, and arise from environmental factors such as UV light
  • hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Sequences of DNA make up genes which can have different forms called alleles. DNA, which makes up the genotype, is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins which make up the phenotype of an organism. Mutations in DNA sequences affect the corresponding mRNA and thus the protein encoded.

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly  

6 0
3 years ago
The bird in the photo is resting on the bison to cross the river. It's also utilizing the bison as a safety place for any alliga
miv72 [106K]

Answer:

commensalism

Explanation:

Commensalism is a symbiotic relationship in which one species benefits from the interaction and the other species is neither harmed nor helped. So the bird is being helped and the bison is being neither harmed nor helped.

P.S. Can you mark me Brainliest please?

3 0
3 years ago
How have the factors that trigger an asthma attack changed since the 1900s? As a researcher, how would you put together the clue
eduard

so if you look up things that can cause an asthma attack it will also show that viruses and bacteria are a cause. with asthma you lungs could already be inflamed as well as your air way wich makes it harder to breath. when you have c-19 it will inflame your lungs even more so it makes it even harder to breath given an asthma attack. more asthma attack now are probably caused by c-19 because it is all over the place and the percent of asthma attack by virus has dramatically increased.

4 0
3 years ago
Which of the following choices correctly
dexar [7]
I do not know if it’s a bad thing but it’s okay so if you don’t do have a great day
5 0
3 years ago
The prenatal development of the internal reproductive structures of the male requires _______ select one:
Ilya [14]
The prenatal development of the internal reproductive structures of the male requires the <span>secretion of androgens.</span>
4 0
3 years ago
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