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Gennadij [26K]
3 years ago
10

All embryos appear female during early development. a. True b. False

Biology
1 answer:
guapka [62]3 years ago
8 0

Answer:

True

Explanation:

Geneticists have discovered that all human embryos start life as females. In the early development in the embryonic stage, this is true both for humans and mammals. This changes only at the 2nd month (in the case of humans, since different mammals have different gestating periods) if the embryo can elaborate enough androgens (dominant male hormone) to offset the maternal estrogens (dominant female hormone) then, maleness develops.

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The dna strand consists of eight pairs of nitrogenous bases. how many different sequences of eight basescan you make?
andrey2020 [161]
There are four nitrogenous bases that makes DNA. These are A, T, G and C. If a DNA strand has eight pairs of nitrogenous bases, the eight bases can be
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Like this, there can be 65,536 different sequences with ATCG.
Since we have 4 nitrogenous bases, pairing will make 4 X 4 = 16 combinations. If we have to make 8 pairs of bases, the number of possible sequences would be 4 to the power 8.

Answer: THERE WILL BE 65,536 DIFFERENT SEQUENCES OF 8 BASES.
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