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Westkost [7]
3 years ago
10

Pancreatic cells, which secrete a large amount of digestive enzymes, are labeled with radioactive leucine and then chased for se

veral hours withnonradioactive leucine. Photographic emulsions are prepared at different times during the chase. Where would the black spots appear on an emulsionprepared 3 hours after the pulse?
A- Rough ER
B- Secretory vesicles
C- Golgi apparatus
D- Exterior of the cell
Biology
1 answer:
Vika [28.1K]3 years ago
3 0

Answer:

Exterior of the cell

Explanation:

Pancreas is a gland found behind the stomach and it secretes digestive enzymes into the duodenum.

Digestive enzymes are proteins hence leucine will form part of the enzymes.

Digestion of food takes approximately three hours. Therefore, if labelled Leucine  is chased down with non radioactive leucine.

Black spots will appear on the exterior of the cells because digestive enzymes are extracellular enzymes .

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Answer:

The DNA strand breaks apart (splits in half, if you will) in order for the translation process to begin.

8 0
2 years ago
Three different alleles (c1, c2, and c3) at the c locus exist in a hypothetical population of juniper trees. If the frequency of
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d

Explanation:

When considering the frequency of the potential alleles of a gene in a population, the total must add up to 1. Think of it like percentages. an allele frequency of 0.3 means 30% of the population carry it (out of a possible 100%).

We know that the frequency of c1 is 0.3. Lets take each option and see if it can be true

a) cannot be less than 0.3.  - false. It <em>could </em>be less than 0.3. For example, it could be 0.1, meaning the frequency of allele c3 would be 0.6 (because 0.3 + 0.1 + 0.6 = 1)

b) cannot be greater than 0.3. - false. It <em>could </em>be greater than 0.3. For example, it could be 0.5, meaning the frequency of allele c3 would have to be 0.2 (because 0.3 + 0.5 + 0.2 = 1)

c) is 0.7.  - false. It <em>can't </em>be 0.7, because that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

d) cannot be greater than 0.7. - true. It <em>cannot </em>be greater than 0.7, because  that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

5 0
3 years ago
Besides animal respiration, what else releases carbon dioxide into the atmosphere?
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Photosynthesis is the answer
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3 years ago
How would you expect a bacterium near the end of binary fission to look?
Rainbow [258]
The bacterium should be 2 separate identical bacterium
8 0
3 years ago
Find the acceleration if the change in velocity is 5 m/s and the time is 10 seconds
Paladinen [302]

Answer:

i think that

Explanation:

solution

given

velocity (v) = 5m/s

time(t) = 10 sec

acceleration (a) = ?

By using formula,

a = v÷t

a= 5÷10

a = 2m/sec

5 0
3 years ago
Read 2 more answers
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