Distinguish between homogametes and heterogametes.
Answer
Verified651.9k+ views
Hint: Gametes are the reproductive cells of an organism. They are also known as the sex cells. The female gametes are called ova or egg cells while the male gametes are known as sperm. These cells are produced by the cell division called meiosis.
Complete Answer:
The process of formation of male and female gametes is known as Gametogenesis.
In meiosis, the parent cell that has two copies of each chromosome undergoes one round of DNA replication followed by two separate cycles of division and form four haploid cells. These cells developed sperm and ova. The ova mature in ovaries whereas sperm develop in testes of males. During fertilization, the sperm and ovum unite and form a new organism which is diploid.
Note: The two sex chromosomes of the organism are different XY means heterogametic whereas homogametic describes the two sex chromosomes of the organism are the same XX.
Complete Answer:
The process of formation of male and female gametes is known as Gametogenesis.
| Sl.No | Homogametes | Heterogametes |
| 1. | The two gametes are smaller in size, shape and activity. | The two gametes are morphologically dissimilar. |
| 2. | These gametes are similar in appearance. They are also referred to as isogametes. | Morphologically different male and female gametes which occur in most of the organisms.Male gametes are known as antherozoids or sperm. Female gamete is known as egg or ovum.Male gamete is small and motile while female gamete is large, inactive as well as non-motile. |
| 3. | For example- alga, Cladophora. | For example- alga, Fucus, human beings. |
In meiosis, the parent cell that has two copies of each chromosome undergoes one round of DNA replication followed by two separate cycles of division and form four haploid cells. These cells developed sperm and ova. The ova mature in ovaries whereas sperm develop in testes of males. During fertilization, the sperm and ovum unite and form a new organism which is diploid.
Note: The two sex chromosomes of the organism are different XY means heterogametic whereas homogametic describes the two sex chromosomes of the organism are the same XX.
Recently Updated Pages
10 examples of friction in our daily life
Draw a diagram of nephron and explain its structur class 11 biology CBSE
Write structures of the following compounds i 2 Chloro3methylpentane class 11 chemistry CBSE
What is BLO What is the full form of BLO class 8 social science CBSE
Explain the Treaty of Vienna of 1815 class 10 social science CBSE
A Paragraph on Pollution in about 100-150 Words
Trending doubts
Draw a labelled diagram of the neuron and describe class 11 biology CBSE
Explain why Helium is used for filling weather bal class 11 chemistry CBSE
Derive an expression for maximum height and range of class 11 physics CBSE
What do you mean by filtration Explain with a diag class 11 chemistry CBSE
Describe various types of epithelial tissues with the class 11 biology CBSE
Fill in the map of Punjab Before 1947 AD i Chamkaur class 11 social science CBSE