A pleiotropic gene is a genes which determines the multiple traits.
Pleiotropic gene is a single gene which controls more than one phenotypic trait.
Sickle cell allele is an example of the pleiotropic gene.
Pleiotropy was first discovered by Gregor Mendel. Gregor Mendel is known as the Father of the Genetics.
Types of pleiotropy are:
Gene pleiotropy: focused on the number of traits and biochemical factors impacted by a gene.
Developmental pleiotropy: mainly focuses on mutations and their influence on multiple traits.
Selectional pleiotropy: focuses on the number of separate fitness components affected by a gene mutation.
Antagonistic pleiotropy: mainly focuses on the prevalence of gene mutations that have advantages early in life and disadvantages later in life.
More examples of pleiotropic gene are:
Sickle cell anemia: It is a mutation in beta-globin chain results in changes in blood shape and function.
Phenylketonuria: PKU is caused by a mutation of the gene responsible for the production of an enzyme called phenylalanine hydroxylase.
To know more about Mutations, refer this link:
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Answer:
(Q1: B)
(Q2:B)
(Q3:C)
(Q4:D)
(Q5:B)
Explanation:
Question 1:
A consensus hears all voices in a group and goes with the common "majority rule" and B shows this in clear detail.
Question 2:
They both have different skill sets but we can remove option A because all fossils are handled the same way. We can remove D because it doesn't make sense for the question which leaves us with C and B. This makes us know that the answer is B because it makes the most sense for the question.
Question 3:
An anthropologist is someone who specializes in the study of human societies and cultures and their development and an archaeologist is someone who digs up fossils. The only answer that makes sense here is C because the archaeologist can uncover the tools and where they made marks in the rock while an anthropologist can use those to discover what civilization it was and how those tools were used.
Question 4:
In the context of this question we can decide that the only relevant answer is D because it would watch over a period of time that could show climate change while the others are just simple facts that can be uncovered about the daily life of these insects.
Question 5:
The steps that can be taken to fix coral bleaching are to reduce stressors, such as sedimentation and pollution, and limiting climate change. This is because the main things that cause the coral to become bleached are changes in the temperature and salinity of the water. By polluting the ocean we change the chemical formula of the water and therefore affect the coral and the climate change heats the ocean to temperatures that the coral can't or will not be able to withstand.
Tropical Rainforest
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