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What is Genetics? - Biology

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प्रश्न

What is Genetics?
एका वाक्यात उत्तर
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उत्तर

Genetics is the branch of biology that deals with the study of transmission of characters from parents to offspring.
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पाठ 3: Principles of Genetics - Exercise 1 [पृष्ठ ३५]

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फ्रँक Biology II [English] Class 7 ICSE
पाठ 3 Principles of Genetics
Exercise 1 | Q 2 | पृष्ठ ३५

संबंधित प्रश्‍न

What is heredity?

Give Technical Term:

A virus with DNA as heredity material.


Complete the following sentence with appropriate word:

______is the hereditary unit.


Complete the following sentence with appropriate word:

The physical expression of genes is called _________.


Complete the following sentence with appropriate word:

Upon _______the diploid condition is restored.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

Most genetic diseases in man are recessive in character.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

A female is responsible for the sex of the progeny.


Multiple Choice Question

A cross was made between tall and dwarf plants. In F1 generation all plants were tall, when the F1 plants were selfed, the tall and dwarf plants appeared in a 3 : 1 ratio in the F2 generation. This phenomenon is known as:


Which one of the following is back cross?


The word chromosome was coined by


Explain test cross with suitable example and state its ratios.


Identify the genotype of peacock.


Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.


Define Alleles.


Which of the following is the number of alleles for blood group in an individual?


An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?


How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?


What is dihybrid cross?


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