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

What is a monohybrid cross? How did Mendel perform this cross?

A certain couple got four daughters in a sequence and no son. Does it mean that the husband does not produce Y-chromosome bearing sperms? Explain. What is the chance of this couple having a daughter?

Differentiate Between  Monohybrid and Dihybrid cross.

Assertion (A): Sympathetic nervous system prepares the body for violent action against abnormal conditions.

Reason (R): Sympathetic nervous system accelerates heartbeat.

Which of the following is correct?

Name the following:

A defect in our eyes in which some parts of the object are in focus while the other parts are blurred.

Given below is a schematic representation of the inheritance of the shape of the seeds of garden peas. Answer the questions that follow:

1. Which is the dominant and recessive allele of the trait?
2. What does the ratio 3 : 1 in the F₂ generation represent?
3. State Mendel's Law of Dominance.

Name the following:

A plastid without pigment.

Name the following:

The orange-red pigment found in the chromoplast.

The basis of genetic variation in the living organisms during mitosis occurs due to ______.

Write the full form of CFCs.

Name the following:

The process by which intact plants lose water in the form of droplets from leaf margins.

Name the following: 

The tissue concerned with upward conduction of water in plants.

Name the following:

The pressure which is responsible for the movement of water molecules across the cortical cells of the root.

Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.

Guttation is another name for bleeding in plants.

Give two examples of cell inclusions.

Root pressure can be measured by using ______.

Name the eye defects caused due to each of the following:

Differentiate between members of the following pair with reference to what is asked in the bracket.

Night blindness and colour blindness (sensory cells which cannot function properly).

find odd one from following: Sewage, newspaper, Styrofoam, Hay.