NEET BIOLOGY

GENETICS AND EVOLUTION

INHERITANCE AND VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do embryologist study embryos?
A
to see if they are related
B
to understand adaptations
C
to determine the age
D
to learn what parents are vestigial
Explanation: 

Detailed explanation-1: -Embryology is the basis for understanding the intimate relation between structures in different organ systems, such as the nervous system and muscle, and is primordial for understanding disorders of development that in the human may present as one of the congenital myopathies.

Detailed explanation-2: -Similarities in embryos are likely to be evidence of common ancestry. All vertebrate embryos, for example, have gill slits and tails.

Detailed explanation-3: -Embryology is important to understanding a species’ evolution, since some homologous structures can be seen only in embryo development. For example, all vertebrate embryos, from humans to chickens to fish, have a tail during early development, even if that tail does not appear in the fully developed organism.

Detailed explanation-4: -Embryos of different species have differences and similarities in structures up to a certain period during gestation. Human, pig, reptile, and bird embryos have similar embryonic development but as they grow, they transform into their respective species. This demonstrates common ancestry.

Detailed explanation-5: -Embryology is the study and analysis of embryos. Evidence of an evolutionary common ancestor is seen in the similarity of embryos in markedly different species. Darwin used the science of embryology to support his conclusions.

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