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Science
10th
grade
Mendelian Dihybrid Cross | Heredity and Evolution | Assessment | English | Grade 10
7 questions
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- 1. Multiple Choice
A cross in which two contrasting characters are studied is called _________.
Monohybrid cross
Bihybrid cross
Dihybrid cross
Two hybrid cross
- 2. Multiple Choice
When two pairs of contrasting characters are taken in a dihybrid cross, the inheritance of one pair is independent of the other. This law is:
Law of dominance
Law of segregation
Law of independent assortment
Both option 1 and option 2
- 3. Multiple Choice
How many different types of gametes will be produced by a plant having the genotype GgYYRR?
2
3
4
9
- 4. Multiple Choice
Pea plant having inflated yellow pod (IIgg) is crossed with the pea plant having constricted green pod (iiGG). What will the phenotype of the plant of F₁ generation?
Inflated and green pod
Inflated and yellow pod
Constricted and green pod
Constricted and yellow pod
- 5. Multiple Choice
In Mendel's experiment with garden pea, round seed shape (RR) was dominant over wrinkled seed shape (rr) and yellow seed colour (YY) was dominant over green seed colour (yy). What are the expected phenotypes in the F₂ generation of the cross RRYY X rryy?
Only round yellow seed
Only round green seed
Only wrinkled green seed
Round yellow seed, wrinkled yellow seed, round green seed, wrinkled green seed.
- 6. Multiple Choice
In F₂ generation of Mendelian dihybrid cross of green and inflated garden pea plant with yellow and constricted garden pea plant, the number of phenotypes obtained will be ____.
1
2
3
4
- 7. Multiple Choice
The following Punnett square represents the pattern of inheritance in a dihybrid cross in which yellow (Y) and round (R) seed condition is dominant over green (g) and wrinkled (r) seed condition. Then plant of type 'I' will produce seeds with genotype that will be identical to seeds produced by the plant of:
Type N
Type C
Type B
Type K
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