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Science
10th
grade
Mendelian Monohybrid Cross | Heredity and Evolution | Assessment | English | Grade 10
7 questions
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- 1. Multiple Choice
The cross between two garden pea plants with a pair of contrasting characters is called ________.
Monohybrid cross
One hybrid cross
Both option 1 and option 2
- 2. Multiple Choice
In mendelian monohybrid cross, phenotypic ratio of F₂ generation is ______.
3 : 1
1 : 2 : 1
1 : 3
2 : 1 : 2
- 3. Multiple Choice
The garden pea plant having yellow coloured seeds was crossed with the garden pea plant having green coloured seeds and F₁ generation was produced. All plants of F₁ generation were having yellow coloured seeds. What does this mean?
The character of green seed colour is not transferred in F₁ generation
Green seed colour is dominant over yellow seed colour
Yellow seed colour is recessive trait
Yellow seed colour is dominant over green seed colour
- 4. Multiple Choice
Which one of the following can not be explained on the basis of law of dominance?
The objects that control a particular character is called a factor
Factors occurs in pair
Out of one pair of factors one is dominant and other is recessive
Alleles do not show any blending and the characters of both parents are recovered in F₂ generation
- 5. Multiple Choice
In mendelian monohybrid cross, genotypic ratio of F₂ generation is ______.
3:1
1:02:01
9:3:3:1
None of these
- 6. Multiple Choice
A homozygous tall garden pea plant is crossed with homozygous dwarf garden pea plant and F₁ generation is produced. Then F₁ hybrid plant is crossed with the homozygous dwarf garden pea plant. The progeny produced by this cross will contain:
100% tall plants
70% tall plants
50% tall plants
10% tall plants
- 7. Multiple Choice
In humans the blood group B is dominant over blood group O. Sharad's blood group is B and his wife's and his daughter's blood group is O. What is the Sharad's genotype for blood group if?
BB
OO
BO
The given information is not enough
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