NEET BIOLOGY

Detailed explanation-1: -The eggs and sperm are 1n, and they combine in fertilization to form a zygote (2n). The zygote divides by mitosis to produce a mature human.

Detailed explanation-2: -In humans, the male gamete is the sperm cell and the female gamete is the ovum (also called the egg cell). Both of them are haploid (n). Their union will result in a zygote that is diploid (2n) and by a process called fertilization.

Detailed explanation-3: -When an egg and a sperm fuse, they combine into a new cell called a zygote. The zygote contains all the genetic information it needs to become a new individual.

Detailed explanation-4: -When the sperm fertilizes the egg, the resulting cells in the offspring will have 2N number of chromosomes. During meiosis, the ploidy is reduced from diploid (2n) to haploid (1n) in production of eggs and sperm.

Detailed explanation-5: -The letter n is used to represent a single set of chromosomes; therefore a diploid organism is designated 2n. Human cells that contain one set of 23 chromosomes are called gametes, or sex cells; these eggs and sperm are designated n, or haploid.