MEDIUM
NEET
IMPORTANT
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Female
AB
Ab
aB
ab
gametes
?
AaBB
AaBb
aaBB
aaBb
In the Punnet square given above, the genotype of the female parent and male parents respectively:
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Important Questions on Principles of Inheritance and Variation
HARD
NEET
IMPORTANT
When AABBcc is crossed with AaBbCc then the ratio of hybrid for all the three genes is :
EASY
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IMPORTANT
In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt :-
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IMPORTANT
Out of three characters on chromosome number 4, two characters indicate linkage and not mentioned by Mendel. These characters were -
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IMPORTANT
The Punnett square shown below represents the pattern of inheritance in dihybrid cross when yellow (Y) is dominant over white (y) and round (R) is dominant over wrinkled (r).
 |
YR | Yr | yR | yr |
| YR | F | J | N | R |
| Yr | G | K | O | S |
| yR | H | L | P | T |
| yr | I | M | Q | U |
A plant of type 'H' will produce seeds with the genotype identical to seeds produced by the plants of :-
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IMPORTANT
In a plant gene 'A' is responsible for tallness and its recessive allele 'a' for dwarfness and 'B' is responsible for red flower colour, and it's a recessive allele 'b' for white flower colour. A tall and red flowered plant with genotype AaBb crossed with dwarf and red flowered (aaBb). What is the percentage of dwarf-white flowered offspring of above cross:-
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IMPORTANT
Which of the following points further strengthened Mendelism :-
MEDIUM
NEET
IMPORTANT
If Aabb x aaBb, then genotypic ratio of its progeny will be :-
MEDIUM
NEET
IMPORTANT
Red and tall dominant character hybrid plant when crossed with recessive white dwarf plant (RrTt x rrtt). What will be the ratio of respective four combinations red tall, red dwarf, white tall and white dwarf plants in the next generation :
