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ioda
3 years ago
8

True or false: in order for a trait to evolve by means of natural selection, it must be heritable, that is, it must be passed do

wn from one generation to the next through DNA?
True
False
Biology
1 answer:
Anna007 [38]3 years ago
5 0

Answer:

I think its true..I hope thats right

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Can someone help with.this please
Tems11 [23]

I'm pretty sure:

a) pepsin optimal pH: 3 and lipase optimal pH:8

b) No, because the stomach needs to be acidic and have an acidic pH but lipase is considered alkaline because its optimal pH is between 8-14 meaning it's an alkaline.

Not sure if this is any help but I hope it helped a little bit! :)

7 0
3 years ago
b) WRITE a brief (between 150-200 words) email to a scientific colleague that explains (IN YOUR OWN WORDS) how the cholera bacte
german

Answer:

The bacterium Vibrio cholerae is the primary cause of cholera disease that mainly infects the small intestine and primarily leads to the dehydration of the body.

Explanation:

The genetic analysis reveals that the aforementioned causative bacteria surpass the acidic conditions of the stomach and eventually reaches the intestinal wall and attaches to it. This is followed by the production of toxic protein by the bacterium. This protein is taken inside the cell via receptor mediated endocytosis followed by its binding to the host protein Arf6. This binding leads to the production of cAMP that results in the dehydration process. This mechanism leads to excessive accumulation of chloride ion in the intestine preventing the entry of sodium ion.

These two ions are associated with the creation of water-salt environment in the intestine that leads to tremendous diarrhea via the process of osmosis.

Hence, we can say that cholera bacterium affects the individuals at the cellular level and osmosis plays a vital role in the process.

4 0
3 years ago
You are a geneticist and two very angry hobbits, Pippin and Lola, come storming into your office. Pippin and Lola have just had
o-na [289]

Answer:

A.) If "G" is the dominant green-eyed gene and "g" is the blue-eyed gene, then Pippin and Lola's genotypes will both be Gg.

B.) Beatrice's genotype is gg.

Explanation:

5 0
3 years ago
Sedimentary rock formed from planet material over a long period of time is
Yuliya22 [10]
I believe the answer is limestone..
7 0
3 years ago
Question 1 (2 points) If a DNA sequence of ACCTTACATCCTACA is transcribed to mRNA, what would the mRNA sequence be? ор ThrPheAsp
AveGali [126]
Hwjisisiaiwieidhdidos
7 0
2 years ago
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