AP BIOLOGY

ANIMAL REPRODUCTION AND DEVELOPMENT

ASEXUAL REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When a sperm cell fertilizes an egg cell, the genes in both cells:
A
combine
B
replicate
C
divide
D
change
Explanation: 

Detailed explanation-1: -If a sperm cell fertilizes an egg cell, the nuclei of the two cells combine. A new cell with a complete set of genetic information is produced – one half is from the mother, and the other half is from the father. The fertilized egg cell can now start developing into a baby.

Detailed explanation-2: -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. This new cell then divides over and over, eventually forming a complete organism with the same genes in each cell.

Detailed explanation-3: -Fertilization occurs when a sperm and an oocyte (egg) combine and their nuclei fuse. Because each of these reproductive cells is a haploid cell containing half of the genetic material needed to form a human being, their combination forms a diploid cell.

Detailed explanation-4: -A zygote, also known as a fertilized ovum or fertilized egg, is the union of a sperm cell and an egg cell. The zygote begins as a single cell but divides rapidly in the days following fertilization. The zygote’s single cell contains all of the 46 necessary chromosomes, getting 23 from the sperm and 23 from the egg.

Detailed explanation-5: -Fertilization happens when a sperm and an egg cell combine together. This is called fertilization. The sperm and egg form a zygote, a diploid cell with two sets of chromosomes.

There is 1 question to complete.