NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM ANIMALS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

The fertilized eggs of most mammals follow a similar pattern of early development. Which sequence is the typical pattern, beginning with the earliest stage?

A	zygote ____ fetus ____ embryo
B	fetus ____ zygote ____ embryo
C	embryo ____ zygote ____ fetus
D	zygote ____ embryo ____ fetus

Explanation:

Detailed explanation-1: -Final Answer: The correct sequence of embryonic development is: Zygote-Morula-Blastula-Gastrula-Embryo.

Detailed explanation-2: -The early stages of embryonic development, such as fertilization, cleavage, blastula formation, gastrulation, and neurulation, are crucial for ensuring the fitness of the organism. Fertilization is the process in which gametes (an egg and sperm) fuse to form a zygote.

Detailed explanation-3: -The correct sequence in development is Fertilization → Zygote → Cleavage → Morula → Blastula → Gastrula.

Detailed explanation-4: -Mammals at this stage form a structure called the blastocyst, characterized by an inner cell mass that is distinct from the surrounding blastula, shown in Figure 24.24b. During cleavage, the cells divide without an increase in mass; that is, one large single-celled zygote divides into multiple smaller cells.

There is 1 question to complete.