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ladessa [460]
2 years ago
11

Help with the bottom part

Biology
1 answer:
MariettaO [177]2 years ago
4 0

Answer:

Explanation:

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Which of the following best describes how amino acids affect the tertiary structure of a protein
yaroslaw [1]

Answer:

D

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4 0
3 years ago
in humans, a combination of XX chromosomes results in a female zygote and that of XY result in a male zygotes. From whom does th
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In a human diploid somatic cell (2n), there are<span> in total 46 chromosomes</span> - 22 autosomal chromosomes present in two copies and 1 pair of sex chromosomes. This means there are 23 pairs of chromosomes. In males, there is one X and one Y chromosome (XY) while in females, there are two XX chromosomes (XY).
During the formation of gametes, a female could give only X chromosomes, so gametes from the mother contain one X chromosome. But, a male could give X or Y chromosome, so gametes from the father contain either X or Y chromosome.
Female gamete and male gamete fuse to form a zygote. Male zygote must contain both X and Y chromosome. It inherits Y chromosome only from the father, so X chromosome must be inherited from the mother.
6 0
3 years ago
What is the original source of almost all energy in most ecosystems
Serga [27]

Answer:

<em>The sun or solar energy is at the start of almost every energy </em>

<em> chain.</em>

Explanation:

4 0
3 years ago
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