NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The scientific name given to a fertilized egg cell.
A
Zygote
B
Gamete
C
Fetus
D
Infant
Explanation: 

Detailed explanation-1: -The embryo is multicellular. Medically, a zygote is termed as zygocyte. The embryo is termed as a diploid eukaryote. The mitosis of zygote results in the formation of an embryo.

Detailed explanation-2: -The result of karyogamy is the formation of a diploid cell called the zygote or zygospore.

Detailed explanation-3: -It takes about five to six days for a zygote to transform into a blastocyst (a microscopic ball of cells) and then into an embryo. Within hours after sperm meets egg, the zygote divides and then continues to divide (and divide). Within days, it’s turned into a blastocyst that’s around one-fifth the size of a period.

Detailed explanation-4: -The fertilized egg (zygote) divides repeatedly as it moves down the fallopian tube to the uterus. First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst.

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