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प्रश्न
What would have happened? If.........
Genes had been absent on the chromosomes.
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उत्तर
On chromosomes, genes are regarded as functional segments. The structural and operational unit of heredity is the gene. If genes are missing from the chromosomes, the offspring will not resemble the parent. Since the gene is the genetic unit that transmits the traits from one parent to the next, the absence of genes will prevent the baby from resembling its parents. It resides in a nucleus and is composed of DNA.
संबंधित प्रश्न
Complete the crossword with the help of clues given below.
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.
Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
Who am I?
I am chemical factory of the cell.
What would have happened? If .........
There had been no differences between mitochondria and plastids.
Who is odd man among us? Give reason.
Distinguish between the following pairs of terms :
Plant cell and animal cell
State the major function of the following :
Lysosomes
State the major function of the following :
Mitochondria:
Write true or false for each statement. Rewrite the false statements correctly:
Golgi bodies form a network of tubes which run throughout the cytoplasm
Identify the cellular structure with the help of the following clue:
A non-living rigid layer surrounding the plasma membrane.
Identify the cellular structure with the help of the following clue:
It initiates and regulates cell division.
