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Daniel [21]
3 years ago
9

A boy is born with an extra finger on one hand. Extra digits are

Biology
1 answer:
vladimir1956 [14]3 years ago
7 0
There was a 50/50 chance for all the siblings to be extra fingered or normal, he got a little unlucky there

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Vitamin B12 is important for the body to function. It helps keep nerve cells healthy, and it helps with the formation of red blo
Ugo [173]

Answer:

B12 (cobalamin): Perhaps the most well-known of all the B vitamins, B12 is vital for neurological function, DNA production and red blood cell development. B12 is found naturally in animal sources like meats, eggs, seafood and dairy.

7 0
3 years ago
HELP ME ASAP!!!!!!!!
enyata [817]
A)





Therefore:Crossing results in 50% (dominant homozygote) and 50% (dominant heterozygote).
b)





Therefore:Crossing results in 25% (dominant homozygote), 50% (dominant heterozygote) and 25% (homozygous recessive).
c)





Therefore:Crossing results in 100% (homozygous recessive).




6 0
3 years ago
Read 2 more answers
Someone adds 20 g of liquid water to 10 g of liquid methanol. Which substance is most likely the solvent?
SVETLANKA909090 [29]

Answer:

Water is the solvent because there is more of it.

Explanation:

Solvent is the one that there is more of, and water is known as the 'universal solvent'.

6 0
3 years ago
Which is not evidence for the endosymbiotic origins of mitochondria and chloroplasts?
Zolol [24]

Mitochondria and chloroplast have similar DNA, which is not evidence for the endosymbiotic origins of mitochondria and chloroplasts.

According to the endosymbiotic theory, a chloroplast and a mitochondria were the independent prokaryotes. Both can be ingested by a large prokaryote and resist digestion. As a result, they continued as endosymbionts and eventually lost some of their autonomic properties. They divide by binary fission, have their own genetic material, possess 70s ribosomes, and Both include their own transcriptional and translational machinery.

Therefore, considering endosymbiotic origin theory, Both Mitochondria and chloroplast have similar DNA is not a piece of evidence.

Learn more about endosymbiotic origins theory here

brainly.com/question/771962

#SPJ4

6 0
2 years ago
Why doesnt pepsin, the enzyme released in the stomach to
Fiesta28 [93]

Answer: unfavourable ph condition for the pepsin

Explanation: during digestion, enzymes are needed to aid the process.digestive enzymes are biological catalyst that breakdown large food particles into digestible form .

As biological catalyst, enzymes require an optimum temperature and pH condition.outside this temperature or pH,the enzyme is denatured.

In the stomach, hydrochloric acid is required to convert pepsinogen into it's active form,pepsin.the acid also creates an optimum low pH that pepsin needs to function.

As the food moves to the small intestine,the pH is alkaline and is unfavourable for pepsin to function.

4 0
3 years ago
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