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Katen [24]
2 years ago
13

Describe how a gene can be amplified using PCR.

Biology
1 answer:
timama [110]2 years ago
5 0

Answer:

How does PCR work? To amplify a segment of DNA using PCR, the sample is first heated so the DNA denatures, or separates into two pieces of single-stranded DNA. Next, an enzyme called "Taq polymerase" synthesizes - builds - two new strands of DNA, using the original strands as templates.

Explanation:

hope this helps

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Alleles A and a reside at a locus on the same chromosome as a locus with alleles B and b. Aa Bb is crossed with aa bb and the fo
abruzzese [7]

Answer:

The two genes are linked together

Explanation:

<em>The conclusion that can be drawn about the arrangement of the genes on the chromosome in the Aa Bb parent is that the two genes are linked together. That is, they do not assort independently.</em>

When two genes are linked together, the number of recombinant offspring would be more than the number of offspring with parental traits. The frequency of recombination would also not exceed 50%.

<em>Recombination frequency = number of recombinant offspring/total number of offspring x 100%</em>

Number of recombinant offspring = 45 + 45 = 90

Total number of offspring = 45 + 45 + 5 + 5 = 100

Recombination frequency = 90/100 x 100% = 10%

Hence, the two genes Aa and Bb are said to be linked together.

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3 years ago
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Answer:

d

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3 0
3 years ago
Explain 2 differences between the daughter cells made during meiosis compared to mitosis.
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The processes differ in two<span> fundamental. </span>Meiosis<span> has </span>two<span> rounds of genetic separation and cellular division </span>while mitosis<span> only has one of each. </span>In meiosis<span>homologous chromosomes separate leading to </span>daughter cells<span> that are not genetically identical. T</span>wo cells<span> with no net change </span>in<span> the number of chromosomes.</span>
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Answer:

Explanation:

With much lower gravity and much less air resistance, the golf ball will stay airborne longer and travel farther.

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