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Komok [63]
3 years ago
15

Cancer is a disease caused by mutations. Yet in most instances, if a parent tragically dies from cancer, this does not put their

child at a greater risk than a person who parents don't develop cancer. How can cancer be caused by mutations and ot be heritable?
a. most cancers arise from mutation in germ line cells
b. mutations that cause cancer occur on specific cells, such as sex cells
c. mutations caused by environmental agents, such as tobacco smoke, occur in somatic cells
d. mutations that cause cancer are specific and cannot be passed on regardless of the type of cell they occur in
​
Biology
1 answer:
Shalnov [3]3 years ago
4 0

Answer:

c. mutations caused by environmental agents, such as tobacco smoke, occur in somatic cells

Explanation:

just because you're parents smoked and got lung cancer doesn't mean you'll get lung cancer. (unless you're breathing the smoke, but that's different from inheriting it.)

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A strand of DNA that is 36 nucleotides long codes for how many amino acids?
Margarita [4]

Answer:

See answer below

Explanation:

Hi there,

Assuming this DNA strand is fully capable of being mature mRNA (5' m7G cap and PolyA tail), nucleotides lead to an mRNA codon, which is 3 nucleotides per codon. In turn, 1 codon leads to 1 amino acid. However, as a single strand, it must be capable of terminating translation, which always requires a stop codon, and thus 3 nucleotides. Hence, we must subtract this from the total amount of codons <em>first</em>.

36 \ ncltd \ \frac{1 \ codon}{3 \ ncltd} = 12 \ codon\\12 \ codon - 1 \ codon \  = 11 \ codon\\11 \ codons\ \frac{1 A.A.}{1 \ codon}  = 11 \ A. A.

Hence, only 11 amino acids will be coded by a single DNA strand 36 ncltd long.

thanks,

3 0
2 years ago
What is the advantage of sexual reproduction over asexual reproduction in organisms
IgorLugansk [536]
Asexual only involves one living organism.........and yeah
8 0
3 years ago
Aerobic respiration is an example of
vladimir1956 [14]

Answer:

Could be multiple. C or A

Explanation:

Enzymes are required for respiration and respiration is exo thermic

5 0
3 years ago
Read 2 more answers
How have freshwater and salt water fish adapted to deal with osmosis in their respective environments?
DaniilM [7]

Answer:

Salt water fish are perfectly adapted to their salty environment and need osmosis to live. The replacement fluid taken on to replace the lost water is desalinated by a process known as diffusion. Diffusion allows fish to live in a state of constant osmosis

5 0
3 years ago
The figures below refer to a herd of water buffalo.
iren [92.7K]

Answer: population increases by 15

Explanation:

The population growth will be calculated by adding the Natural Increase in population plus the Net In-Migration. This will be:

Natural increase = Birth - Death rate

= 35 - 7

= 28

Net-In-Migration = Immigration - Emigration

= 4 - 17

= -13

Therefore, population growth will be:

= 28 - 13

= 15

Therefore, population increases by 15

5 0
2 years ago
Read 2 more answers
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