Question

Statement 1: Zygote is the vital link between two generations.
Statement 2: Zygote is formed due to fusion of two haploid gametes.
A. Both Statements 1 and 2 are correct
B. Statement 1 is correct but statement 2 is incorrect
C. Statement 1 is incorrect but statement 2 is correct
D. Both statements 1 and 2 are incorrect

Answer 1

Hint: A zygote is formed as a result of the fusion of two gametes I.e., male and female reproductive cells by the process of fertilization. The zygote consists of two sets of chromosomes which consists of genetic information which is passed on to the new generation. In multicellular beings like plants and animals, the zygote undergoes cell division and eventually forms the organism.

 Complete step by step answer:
The characteristics of a zygote are as follows:
Fertilization is the most crucial step in sexual reproduction of living beings.
This process includes the union of two haploid cells which are the male and female gametes and leads to the production of a diploid zygote.
This zygote is responsible for the genetic constitution of an offspring.
The zygote contains 23 chromosomes each from both the parents, i.e. 46 chromosomes in all.
Zygote is referred to as the vital link between two generations.
Zygote is the resultant structure of fertilisation that is formed due to fusion of two haploid gametes.
Both Statements 1 and 2 are correct.
In animals, the gender of an individual depends on the 23rd chromosome that is incorporated in the zygote from each parent.
Zygote bearing two X sex chromosomes I.e., XX chromosomes, forms a biological female.
Zygote bearing one X and one Y sex chromosomes I.e., XY chromosomes, forms a biological male.
So, the correct answer is “Option A”.

Note:
-Zygote gives rise to the embryo.
-Zygote divides to form cells which further forms tissues and eventually the entire organism.
-Oscar and Richard Hertwig were the first scientists to identify the formation of animal zygote.