Mutations can be both harmful and helpful. It is helpful because it could help breed or sustain more species for better production or consumption. It is harmful because it could cause genetic disruption to a living organism that may impair its functioning as a whole.
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Answer:
Explanation:
I think answer should be the first one
<span>Taking lipid lowering drug as perscribed is the focus. Hypercholesterlmia is a condition where LDL is greater in the blood. So the level of such lipids should be lowered. Inactivity, obesity and unhealthy diet are causes. So the treatement should involve avoiding the situations leading to high LDL.</span>
There are 200 different cells in a human body and within those cells there are about 20 different types of structures or organelles .
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Answer:
The classic tool to predict the patterns of heredity is using a <u>Punnett Square</u>.
Explanation:
In genetics, a trait can be considered dominant or recessive. Since the important discoveries of Gregor Mendel, scientists use a <u>capital letter (D) to indicate a trait is dominant, and a lowcase letter (d) to show a trait is recessive. </u>
Assuming that a scientist knows the genotype for the desired trait they want to predict on the offpsring, a Punnett Square is<u> a reliable tool and a graphic representation that permits them to visualize the potential features of the offspring by showing how the alleles may be exhibited and passed on the offspring and will determine the possible combination of genotypes.</u>
<em>How does it work?</em>
For example, as we can observe in the image below, both parents are homozygous for a trait <em>PP=Purple; pp=white</em>. P is dominant and p is recessive (the color purple will be dominant, and the white will be recessive). So, we put one parent's genotype in the top row (PP) and the other parent's genotype in the left column (pp) and combine one of each letters on the squares, <em>i.e</em>. one of each parent's alleles. Then, we can observe in the results that 3 of the offspring will exhibit the purple color (PP, Pp, Pp) and only one will exhibit the white recessive color (pp); or more properly known as a genotypic ratio of 3:1.