Transposable elements are DNA sequences that contain numerous point mutations. Thus, option "4" is correct.
<h3>What are Transposable elements?</h3>
Transposable elements are fragments of DNA that have the ability to jump from one part of the genome to another. While most of the DNA is always in the same place surrounded by the same neighbouring pieces of DNA, mobile elements move from one place to another causing many changes or mutations.
When a transposon moves through the genome, it can insert into a vital gene, disrupting its function, or into a location near vital genes, causing erroneous activation or inactivation.
On the other hand, there can be chromosomal rearrangements due to transposons of the same family with complementary sequences that are separated in the genome and that by sequence homology match.
This can lead to ectopic recombination. Large-scale rearrangements induced by mobile elements are considered a particular class of recombination events that influence genomic plasticity.
Thus, option "4" is correct.
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This can be solved either by using a Punnet Square or you can use the formula (n(n+1))/2, where n is the number of alleles. However, using either method will give you the number of possible genotypes regardless if it's homozygous or heterozygous. If we use the second formula, that will give you 10 possible genotypes. Since you only want to know the number of heterozygous genotypes, you should subtract the number of possible homozygous genotypes. In this case, there are four. That is (A1,A1), (A2,A2), (A3,A3), and (A4,A4). Knowing this, you'd be able to figure out that there are six heterozygous genotypes.
(A1,A2), (A2,A3), (A3,A4), (A1,A4), (A1,A3), (A2,A4)
<h3><u>Answer;</u></h3>
C) Steam forces the high-pressure turbine to turn.
<h3><u>Explanation;</u></h3>
- <em><u>Nuclear power stations are used for the purpose of producing electricity, this involves energy conversion from one form to another until energy in the form of electricity is obtained.</u></em>
- <em><u>Nuclear power plants involves the splitting of uranium atoms through the process of nuclear fission. Which produces heat energy that is used to boil water into steam. Then the steam turns or spins turbines that powers the generator to generate electricity. </u></em>
Coronary vessels supply blood to heart muscles ..blockage in them will cause hypoxia in heart muscles which leads to heart attack