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inessss [21]
2 years ago
6

Which type of mutation is responsible for new variations of a trait?

Biology
1 answer:
Delvig [45]2 years ago
6 0

Missense mutation

Hope that works

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Some roses have streaks of pink and streaks of red to give a striped effect to
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Answer:

The correct answer is - incomplete dominance is the correct answer.

Explanation:

Incomplete dominance is the inheritance where there is no complete dominance takes place and where is the mix of both alleles trait mixes or blends in the offspring.

The red or purple cross with white plants flower cross the incomplete inheritance takes place to produce a striped effect to their petals.

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3 years ago
Which statements about the modification of chromatin structure in eukaryotes are true? Select all that apply.
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Ans.

Chromatin molecules are made up of DNA and histone proteins. Modification of chromatin structure include covalent, post-translational changes in histone proteins, present in chromation. Acetylation and methylation are two important histone modifications that affect structure of chromatin molecules.

Acetylation involves addition of an acetyl group to histones that increases transcription of DNA by loosen the association between DNA and nucleosome.

Methylation involves addition of a methyl group to histones that results in condensation of chromatin molecule and thus, decreases transcription of DNA.

Both acetylation and methylation are reversible processes.

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