What are gametes?

Academic Biology NCERT Class 8

Gametes are the reproductive cells of an organism which are also referred as sex cells.

The ova or egg cells are the female gametes whereas the male gametes are called as sperm. Gametes are haploid and each cell carries one copy of each chromosome.

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Updated on: 10-Oct-2022

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What are gametes and zygote?
(a) What are gametes?(b) In which sort of reproduction are gametes involved?(c) What is formed when two gametes fuse?(d) What is this act of fusion called?
What are the organs in humans which produce the gametes?
The correct sequence of reproductive stages occurring in flowering plants is:(a) gametes, zygote, embryo, seed (b) zygote, gametes, embryo, gametes(c) seed, embryo, zygote, gametes (d) gametes, embryo, zygote, seed
Which type of reproduction:(a) involves gametes?(b) does not involve gametes?
Describe female and male gametes in flower.
Name the male and female gametes in animals.
The advantage that internal fertilisation has over external fertilisation is that in internal fertilisation:(a) new off-springs are exactly like the parent (b) production of large numbers of gametes is unnecessary (c) copulation and fusion of gametes is passive (d) fewer individuals are produced
The two glands A and B which occur in pairs, are present in the endocrine system of humans. The pair of glands A is found only in females whereas the pair of glands B occurs only in males. The glands A make and secrete two hormones C and D whereas glands B make and secrete only one hormone E. In addition to hormones, glands A makes gametes F whereas glands B making gametes G.(a) What are glands A?(b) What are hormones C and D?(c) What are glands B? Name the hormone E.(d) What are gametes (i) F, and (ii) G?(e) Which event in the life of males and females is associated with the secretion of hormones C, D and E?
DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage- The cell which results after fusion of gametes is called a zygote. The fusion of male and female gametes (to form a zygote) is called fertilization. The zygote develops into an embryo. The cell which results after fusion of male gametes and female gametes is called(a) zygote(b) fertilization(c) embryo(d) none of these
In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote?
In tobacco plant, the male gametes have 24 chromosomes.(i) What is the number of chromosomes in the female gamete? (ii) What is the number of chromosomes in the zygote?
What are Microwaves? What are they used for?
What are Endonucleases and What are its Types?
In a flower, the parts that produce male and female gametes are respectively:(a) sepal and anther (b) filament and stigma (c) anther and ovary (d) stamen and style

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