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Assertion: An organism with lethal mutation may not even develop beyond the zygote stage.

Reason: All types of gene mutations are lethal.

Both assertion and reason are true and the reason is the correct explanation of the assertion.
Both assertion and reason are true but the reason is not the correct explanation of the assertion.
Assertion is true statement but reason is false.
Both assertion and reason are false.
Additional Questions

The F2 generation offspring in a plant showing incomplete dominance, exhibit

Answer

In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F1 generation?

Answer

A common test to find the genotype of a hybrid is by:

Answer

A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type, offers for blood donation without delay. What would have been the type of blood group of the donor friend?

Answer

Haemophilia is more commonly seen in human males than in human females because

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A self-fertilizing trihybrid plant forms:

Answer

Given below is a pedigree chart of a family with five children. It shows the inheritance of attached ear lobes as opposed to the free ones. The squares represent the male individuals and circles the female individuals. Which one of the following conclusions drawn is correct?
pedigree-chart-family

Answer

Rh factor can produce life-threatening disease ______.

Answer

Grain colour in wheat is determined by three pairs of polygene. Following the cross AABBCC (dark colour) x aabbcc (light colour), in F2-generation what proportion of the progeny is likely to resemble either parent

Answer

Which of the followings is a well known autosomal abnormality at birth?

Answer
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