AP BIOLOGY

ANIMAL REPRODUCTION AND DEVELOPMENT

ASEXUAL REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How much genetic material is provided by the parents in sexual reproduction?
A
0% from each
B
25% from each
C
50% from each
D
100% from each
Explanation: 

Detailed explanation-1: -So, each sperm contains 50% of the father’s genes and each egg contains 50% of the mother’s genes. This makes gametes different from other cells in the body. A basic human body cell contains 46 chromosomes, but the egg and sperm only contain half that number, or 23 chromosomes.

Detailed explanation-2: -To form a fetus, an egg from the mother and sperm from the father come together. The egg and sperm each have one half of a set of chromosomes. The egg and sperm together give the baby the full set of chromosomes. So, half the baby’s DNA comes from the mother and half comes from the father.

Detailed explanation-3: -Asexual Reproduction: One parent always passes on a duplicate of all of its genes to offspring. Rare mutations aside, offspring can only be genetically identical copies, or clones, of the parent.

Detailed explanation-4: -In sexual reproduction, two parents contribute genetic information to produce unique offspring.

Detailed explanation-5: -When a male gamete and a female gamete are involved in reproduction, this method is referred to as sexual reproduction. Here the male and female gametes fuse during fertilization to produce a single-celled zygote. The zygote subsequently develops into an embryo which further develops into a new individual.

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