Advertisements
Advertisements
प्रश्न
What would have happened? If.........
Genes had been absent on the chromosomes.
Advertisements
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
Draw a well labelled diagram of animal cell and mention one function of the main cell organelles.
Match the item in column 'A' with those in column 'B'.
| Column A | Column B |
| (a) Vacuoles | (i) Intracellular digestion |
| (b) Nucleolus | (ii) Respiratory enzymes |
| (c) Lysosomes | (iii) Covered by tonoplast |
| (d) Anthocyanin | (iv) Dissolved in the cytoplasm |
| (e) Cristae | (v) Forms RNA |
Distinguish between the following pairs of terms :
Plant cell and animal cell
State the major function of the following :
Vacuoles
The cell membrane is called selectively permeable. Why?
Briefly discuss the importance of chromosomes to an organism
Fill in the blanks:
Golgi bodies are also called ______.
Write true or false for each statement. Rewrite the false statements correctly:
The nuclear membrane encloses a colourless, dense fluid called nucleoplasm
A typical cell consists of ______ major parts.
Define the following term:
Organelles
