Identify label 'A' of 'X' chromosome.
Question types
Inheritance and Variation question types
52 questions across 5 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.
52
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5
Question groups
5
Question types
01
Answer the following questions
11 Q→02Answer the following questions.
18 Q→03Answer the following questions in detail.
15 Q→04Answer the following questions in detail.
6 Q→05Answer the following in detail :
2 Q→Sample Questions
Inheritance and Variation questions
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What is criss-cross inheritance?
Define the term 'recessive'.
How will you identify that, F, hybrid is homozygous or heterozygous? Explain it with a suitable example.
State any 'two' symptoms of Down's syndrome.
Sketch and label the structure of chromosome.
Explain the mechanism of sex determination in human being.
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
Differentiate between X-chromosome and Y- chromosome with reference to -
(a) length of non-homologous regions (b) type as per position of centromere.
(a) length of non-homologous regions (b) type as per position of centromere.
Identify the types of chromosomal aberrations in the following A, B, C, D.
Describe the structure of sex-chromosomes.
A heterozygous tall plant of pea is crossed with a dwarf plant of pea. Calculate the phenotypic ratio of progeny.
(a) Define - Incomplete dominance.
(b) If a red flowered Mirabilis jalapa plant is crossed with a white flowered plant, what will be the phenotypic ratio in F, generation ? Show it by a chart.
(b) If a red flowered Mirabilis jalapa plant is crossed with a white flowered plant, what will be the phenotypic ratio in F, generation ? Show it by a chart.
The genotypic ratio 1:2:2:4:1:2:1:2:1 is obtained in F₂ generation. What will be the phenotypic ratio?
Describe the structure of chromosome with a suitable diagram.
Describe the cross between a homozygous tall, round-seeded pea plant and a dwarf, wrinkled-seeded pea plant. What will be the types of progeny in the F2 generation of this cross and in what proportion will it be? Name and state the law which is explained by this example.
A pea plant homozygous for yellow round seed is crossed with its recessive parents. Calculate the phenotypic and genotypic ratio with the help of checker board.
Explain "the law of independent assortment" with a suitable example.
State and explain the 'Law of Independent Assortment' with a suitable example.
What is sex linkage? Explain the inheritance of colour blindness and haemophilia with suitable charts.
Explain the law of dominance and compare how it differs from incomplete dominance and co-dominance.
Give the graphic representation of back cross and test cross. Differentiate between them.
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