(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Haploid number of chromosomes are found in ______.

What is Active transport?

Explain the term Active transport.

Name two harmful effects of noise pollution.

Name the following:

Scattered Golgi complex, found in plant cells.

Name the following:

The tubules of Golgi complex.

Name these:

Four main phases of Karyokinesis

Define the following term:

Aster

The physical expression of a character is called ______.

Distinguish between the following pair:

Homozygous and Heterozygous chromosomes

Mendel crossed a homozygous pea plant having round seeds (RR) with a homozygous pea plant having wrinkled seeds (rr). He got different results. On the basis of it, answer the following questions:

1. Which character of seed is studied in the experiment?
2. Which of the above two traits is dominant?
3. Write the phenotype and genotype of F₁ offspring.
4. Mention and state Mendel's law as shown in the above cross.
5. Make a Punnett square for F₂ generation when two plants of F₁ offspring are crossed with each other.
6. Write the phenotypic ratio of F₂ progeny.
7. What will be the genotypic ratio of F₂ offspring?
8. What are the two traits of seed colour ? Also mention which is dominant and recessive?
9. Write the scientific name of the garden pea.
10. Write two main features of the pea plant, due to which Mendel selected it for his hybridisation studies.

A homozygous plant having round (R) and yellow (Y) seeds is crossed with another homozygous plant having wrinkled (r) and green (y) seeds. Answer the following questions:

1. Give the genotype of the F₁ generation.
2. Mention the phenotype of the F₁ offspring.
3. Give the possible combinations of gametes that can be obtained from F₁ hybrids.
4. Give the dihybrid phenotypic ratio and the phenotype of the offspring of the F₂ generation when two plants of F₁ generation are crossed.
5. Name and state the law which explains the dihybrid phenotypic ratio.

The process for which energy is required is ______.

Active transport is one in which the ions outside the roots move in by utilising ______.

Define the following term:

Active transport

Name the three intrinsic features which reduce the rate of transpiration.

Give a reason/suitable explanation.

Nerium loses less amount of water during transpiration.

Three cylinders of potato were carefully dried on blotting paper and weighed. Each piece weighed 3 grams. Each one was placed in the beaker as shown below:

Answer the following questions:

1. After 48 hours, which potato cylinder would be the heaviest?
2. The movement of which substance is mainly responsible for the weight change in the potato cylinders?
3. Name and define the process which is responsible for the movement of the substance mentioned in answer (b).
4. Write specific names of the processes which occur in beakers B and C. [kinds of processes defined in answer (c)].
5. Would there be any difference in the weight of the potato cylinder in beaker A after 48 hours? Give reason.

The optimum temperature for the process of photosynthesis is ______.

Unwanted disturbing sound, even if it is music next door, is noise.