NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
During ____ reproduction, DNA from two parents combines and cells produce genetically different offspring, whereas during ____ reproduction, DNA from one parent is copied and cells produce genetically identical offspring.
A
Sexual; asexual
B
Sexual; sexual
C
Asexual; asexual
D
None of these
Explanation: 

Detailed explanation-1: -Sexual reproduction involves two parents and produces offspring that are genetically unique. During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote. Meiosis is the type of cell division that produces gametes.

Detailed explanation-2: -Sexual reproduction is combining genetic material from two parents, usually from two gametes. How the two cells combine may take many forms, but does not necessarily involve physical contact. Sexual reproduction produces offspring that are genetically distinct from other offspring and from their parents.

Detailed explanation-3: -Some organisms can use mitosis to reproduce asexually. The offspring of asexual reproduction are genetically identical to each other and to their parent. Most single-celled, microorganisms reproduce asexually by duplicating their genetic material and dividing in half.

Detailed explanation-4: -Fission is a type of asexual reproduction wherein two individuals will form as the parent divides in half. Fragmentation involves the breaking of body parts into fragments. Each piece will regenerate and become a new individual.

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