AP BIOLOGY

ANIMAL REPRODUCTION AND DEVELOPMENT

ASEXUAL REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do sexually reproducing organisms look similar to their parents?
A
Boys look more like their dads and girls look more like their moms
B
They get half of their genetic material from one parent and half from the other parent
C
They get more genetic material from the parent they most resemble
D
They only get genetic material from one parent
Explanation: 

Detailed explanation-1: -In sexually reproducing organisms, each parent contributes half of the genes acquired (at random) by the offspring. Individuals have two of each chromosome and hence two alleles of each gene, one acquired from each parent. These versions may be identical or may differ from each other.

Detailed explanation-2: -During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents. The genetic diversity of sexually produced offspring is thought to give species a better chance of surviving in an unpredictable or changing environment.

Detailed explanation-3: -A child inherits half of the genetic material from each parent. So, it may be they look alike but they are not identical to their parents. Instead, they have the combination of characteristics inherited from both parents.

Detailed explanation-4: -Asexual reproduction skips meiosis and fertilization of male and female gametes and therefore, produces genetically identical progeny i.e. clone by single parent cell.

Detailed explanation-5: -In sexual reproduction, an organism combines the genetic information from each of its parents and is genetically unique. In asexual reproduction, one parent copies itself to form a genetically identical offspring.

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