Answer:
Option). It permits hydrogen bonds between DNA strands to dissociate.
Explanation:
PCR (polymerase chain reaction) techniques can bed defined as a technique, which is used for in vitro amplification of sample DNA. It is made up of three steps, denaturation, primer annealing, and extension.
The first step in PCR is heating of sample DNA to denature the double stranded DNA by breaking hydrogen bonding present between bases of double stranded DNA.
Due to this, double strands of DNA get separated and provide templates for synthesis of daughter DNA strands.
Thus, the correct answer is second option.
Answer:Plants absorb sunlight and turn that energy into food once put together the process is known as photosynthesis.
Explanation:
If this is a true or false question, then it is true.
It is asexual reproduction.
<u>Option A</u>) A nucleotide substitution in the coding region of the lactase gene that interferes with the interaction between lactase and lactose.
<h3>
What mutation causes lactase persistance?</h3>
A mutation in a single nucleotide, in which thymine replaces cytosine, in the region that controls the expression of the lactase gene is what causes the lactase persistence trait.
This mutation first occurred in Hungry, and then it spread out to other regions of Europe, Africa, and Asia.
This mutation allowed humans to digest milk during adulthood.
According to this information, we can assume that the correct option is A). A nucleotide substitution in the coding region of the lactase gene that interferes with the interaction between lactase and lactose.
You can learn more about lactose persistance at
brainly.com/question/3465475
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