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Juli2301 [7.4K]
3 years ago
15

A bacterium was found to contain a sequence of atcgggatcct in its genome. a few generations later, the sequence was found to be

atcggggggatcct. what type of mutation caused this change in the bacteria? duplication insertion inversion translocation nextreset
Biology
2 answers:
Ludmilka [50]3 years ago
8 0

Answer:

Option). duplication.

Explanation:

Mutations are permanent changes in DNA, due to change in its nucleotide sequence. A mutation that occurs due to replication or duplication of a portion of genetic material is known as duplication.  

As altered sequence in given bacterium represents duplication of three guanine nucleotides, the type of mutation that caused this sequence change is duplication.

Original sequence: act<u>ggg</u>atcct

Altered sequence:  atcggggggatcct

Thus, the correct answer is 'duplication.'

Veronika [31]3 years ago
5 0
I believe it would be a Duplication.
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In chickens, comb shape is determined by two independent genes (R and P). A walnut comb is produced when at least one dominant a
Aleksandr [31]

Answer:

Option B, Rr pp × rr Pp

Explanation:

Given

Walnut Comb is produces when  one dominant allele R is present at one gene locus and at least one dominant allele P is present at a second gene locus - R* P*

Rose Comb - at least one dominant allele is present at the first locus and two recessive alleles are present at the second locus - R* pp

Pea comb - two recessive alleles are present at the first locus and at least one dominant allele is present at the second  - rr P*

Single comb - two recessive alleles are present at the first and the second locus  - rrpp

Parent are rose combed and pea combed

For being rose genotype must be R* pp

and for being pea combed genotype must be rr P*

Rr pp x rr Pp

will  produce

Walnut comb  with genotype Rr Pp

Single comb  with genotype rrpp

and pea comb  with genotype rrPp

Hence, option B is correct

8 0
3 years ago
Read 2 more answers
What type of chromosomal abnormality can lead to multiple copies of a gene, some of which can incur mutations that can lead to t
koban [17]

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To learn more about trisomy here

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4 0
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7 0
3 years ago
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The answer is  7......
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Zinaida [17]
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5 0
3 years ago
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