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Lina20 [59]
3 years ago
8

In piranha, fish with large teeth represent the dominant trait. Because the dominant trait masks the recessive trait, in a popul

ation of 1,000 piranhas, all with large teeth, we could expect about ________of the next generation of fish to have small teeth.A)0%B)25%C)50%D)100%
Biology
1 answer:
vodomira [7]3 years ago
8 0

Answer:

B. 25%

Explanation:

Assuming the trait for teeth size is represented by the allele A. large teeth size is dominant and will be represented by A while small teeth size will be represented by a.

Assuming that the population of 1,000 [piranhas are all heterozygotes and they crossbreed with one another:

Aa   x   Aa = AA, Aa, Aa and aa

The ration of piranhas with large teeth to that of the small teeth is 3:1 or 75:25.

Hence, about 25% of the next generation of the population is ecpected to have small teeth.

The correct option is B.

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Which of these are true regarding eukaryotes? (choose all that apply)
OleMash [197]

Answer:

b. During replication there is both a leading strand and a lagging strand .

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Explanation:

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To allow the DNA replication in 5' to 3' direction on both strands, one strand is replicated discontinuously in the direction opposite to the movement of the replication fork.

The discontinuously replicated strand is lagging strand while the other one is the leading strand.

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7 0
3 years ago
Cómo clasificarías la Adenina​
stiks02 [169]

Classification of Adenine is given below.

Explanation:

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  • Adenine is one of the five nitrogenous bases that are part of nucleic acids (DNA and RNA) and in the genetic code is represented by the letter A. The other four bases are guanine, cytosine, thymine and uracil. Adenine is always paired with thymine in DNA.
  • A chemical compound that cells use to make the fundamental elements of DNA and RNA. It is also part of many substances in the body that provide energy to cells. Adenine is a type of purine. DNA structure.
  • The adenine formula, which is derived from purine, is C5H5N5. It is a component of the nucleic acid chains that is in the nucleotides, as is the rest of the nitrogenous bases of RNA and RNA (uracil, thymine, cytokine and guanine).
  • Cytosine (C) is one of the four bases of DNA, the other three being adenine (A), guanine (G) and thymine (T). Within the DNA molecule, the cytosine bases are located in a chain forming chemical bonds with the guanine bases of the opposite chain
  • Adenine and thymine are complementary (A = T), linked by two hydrogen bridges, while guanine and cytosine (G≡C) are linked by three hydrogen bridges. Since RNA does not contain thymine, complementarity is established between adenine and uracil (A = U) by two hydrogen bridges.
7 0
3 years ago
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