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stira [4]
2 years ago
12

The ____________ contains enzymes that penetrate the egg for fertilization.

Biology
1 answer:
Phantasy [73]2 years ago
3 0
Acrosome (the head of the male gamete)
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What is the role of glucose in catabolite repression? What is the role of glucose in catabolite repression?
Ierofanga [76]

Answer:

It decreases the levels of cAMP in the cell, repressing transcription from the lac operon.

Explanation:

When glucose is absent, cAMP serves as coactivator binds to CRP, the catabolite gene activator protein. The CRP-cAMP complex binds to the site near the lac promoter and stimulates the expression of the operon by RNA polymerase many folds.

Catabolite repression refers to inhibition of the synthesis of enzymes of lactose catabolism when glucose is present as an energy source. In the presence of glucose, synthesis of cAMP is inhibited resulting in its lower cellular concentration. The lower cAMP levels do not allow the binding of cAMP and CRP. The result is reduced expressed of lac operon.

4 0
3 years ago
(PLEASE HELP !!!!!???!!)
Fed [463]

Answer:

idk if it's good..

Explanation:

The dark-colored mice arose in the population at location A by random mutation. ... advantage over light-colored mice in that environment. • Over time, dark-colored mice became more common at location B because more of their offspring survived. to reproduce and pass on their genes, including genes for fur color.

3 0
2 years ago
One student claims that yogurt is made by lactic acid fermentation. Another claimer claims that yogurt is made by alcoholic ferm
Lerok [7]
It is (D) Carbon dioxide.
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in alcoholic fermentation=C6H12O6 to produce 2C2H5OH+2CO2.
therefore all of them produce (D) Carbon dioxide.
7 0
3 years ago
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If a person has type B blood
EastWind [94]

If a person has blood type B, that means you can only donate blood to blood types such as AB or B

If a person has O, that means it can donate blood to all blood types

If its A, they can donate blood to blood types of AB and A

If its AB it can donate to blood types of A, B, and AB

5 0
3 years ago
Entrainment is the ability to or not to synchronize your breathing to your walking or running step.
wlad13 [49]
True

Entrainment is to synchronize an organism to an external whole for example music or tapping.

Hope this helps!
6 0
3 years ago
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