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Softa [21]
3 years ago
15

Dr. stott is a developmental psychologist who studies how environmental influences impact gene expression without changing dna.

what does she research? chromosomes heredity genome epigenetics
Biology
2 answers:
julsineya [31]3 years ago
8 0
<span>Dr. Stott is researching epigenetics. Epigenetics is the study of changes that occur in gene expression with no changes in the actual gene sequences. Environmental factors can influence gene expression without changing the DNA sequence, making this the study of epigenetics.</span>
Setler79 [48]3 years ago
3 0
Dr.Stott is teaching epigenetics.
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One strand in a segment of a gene has the base sequence TGCTTA. What would be the complementary sequence of nucleotides found on
yarga [219]

The complementary sequence of nucleotides found on the other strand of DNA is <u>ACGAAT</u> when one strand in a segment of a gene has the base sequence TGCTTA.

<u>Explanation:</u>

Deoxyribonucleic acid is the one which carries the genetic information from the parent to the offspring.  During DNA replication one strand of DNA replicates to produce another strand.        

The DNA molecule have a anti-parallel structure and the two strands run in opposite direction. If in one strand in a segment of a gene has the base sequence TGCTTA the complementary sequence of nucleotides found on the other strand of DNA will be ACGAAT.

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Answer:

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F1 Generation  

T T

t Tt Tt

t Tt Tt

In F1 generation;

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T t

T TT Tt

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In F2 Generation;

Genotype

There are 25% TT (homozygous dominant, tall plants).

50% Tt (heterozygous tall plants), and

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This is how dwarf characteristics reappear in the second generation.

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I have attached a document to this answer to facilitate effective understanding if there is anormalities in arrangement the Punnet Square.

Download docx
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Explanation:

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