NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Parthenogenesis is
A
Development of embryo without fertilization
B
Development of fruit without fertilization
C
Development of fruits without hormones
D
Development of embryo from egg without fertilization
Explanation: 

Detailed explanation-1: -Parthenogenesis is a form of reproduction in which an egg can develop into an embryo without being fertilized by a sperm. Parthenogenesis is derived from the Greek words for “virgin birth, ” and several insect species including aphids, bees, and ants are known to reproduce by parthenogenesis.

Detailed explanation-2: -Parthenogenesis is the development of an embryo from an egg without fertilization.

Detailed explanation-3: -In certain insects, salamanders, and flatworms, the presence of sperm serves to trigger parthenogenesis. Sperm cells launch the process by penetrating the egg, but the sperm later degenerates, leaving only the maternal chromosomes. In this case, sperm only sparks an egg’s development––it makes no genetic contribution.

Detailed explanation-4: -Final answer: In some plants, the female gamete develops into an embryo without fertilization. This phenomenon is known as parthenogenesis.

There is 1 question to complete.