EMBRYOLOGY
CHROMOSOMES AND CELL DIVISIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1
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2
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23
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46
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Detailed explanation-1: -It is known as male gamete or sperm cell. In humans, each gamete contains 23 chromosomes and their fusion results in the formation of a diploid zygote containing 46 chromosomes.
Detailed explanation-2: -The 23rd pair of chromosomes are two special chromosomes, X and Y, that determine our sex. Females have a pair of X chromosomes (46, XX), whereas males have one X and one Y chromosomes (46, XY).
Detailed explanation-3: -It is important that human sperms and eggs have only 23 chromosomes because this way when fertilization occurs, it will form one full diploid cell, which will then divide via mitosis to form a full organism.
Detailed explanation-4: -In the human reproductive process, two kinds of sex cells, or gametes (GAH-meetz), are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female’s reproductive system. When sperm fertilizes (meets) an egg, this fertilized egg is called a zygote (ZYE-goat).