Question
What do you mean by haploid (n) cell?
✓
Answer
- The cells with only one set of chromosomes is known as haploid cell.
- At the time of sexual reproduction, there is meiosis. In meiosis chromosome number of the parental germ cells are reduced to half. Therefore, gametes are haploid.
- The haploid chromosome number (n) in human beings is 23.
- Sperm and ovum both are haploid carrying 23 chromosomes each.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Complete the table, if a metal reacts with the reagent then mark ✓ and if not then ✗.
| Metal | Ferrous sulphate | Silver nitrate | Copper sulphate | Zinc sulphate |
| Cu | ||||
| Al |
Give the formulae of the chlorides of the elements $X$ and $Y$ having atomic numbers of $3$ and $6$ respectively. Will the properties of the two chlorides be similar or different? Explain your answer:
→What happens when silver chloride is exposed to sunlight? Write a chemical equation for this reaction. Also give one use of such a reaction.
Give reasons for the following observations:
- Air holes of a gas burner have to be adjusted when the vessels being heated get blackened by the flame.
- Use of synthetic detergents causes pollution of water.
Observe the given picture and answer the following questions.
- Which property do you understand in this picture?
- What is the temperature of the water at the surface?
- What is the temperature below the layer of ice on the surface?
Which precautions will you follow to maintain the reproductive health?
What is the minimum number of rays required for locating the image formed by a concave mirror for an object? Draw a ray diagram to show the formation of a virtual image by a concave mirror.
Write a short note.
Characteristics of carbon
Characteristics of carbon
Write a short note.
Aromatic hydrocarbons
Aromatic hydrocarbons