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Question
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Solution
Gregor Johann Mendel was a biologist who carried out experiments on garden pea and derived a few fundamental principles in genetics. He is called the 'Father of Genetics'.
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RELATED QUESTIONS
A heterozygous tall plant of pea is crossed with a dwarf plant of pea.
Calculate the phenotypic ratio of the progeny.
State Mendel’s Law of Dominance.
A pure tall plant (TT) is crossed with a pure dwarf plant (tt).
Draw Punnet squares to show
(1) F2 generation
(2) F2 generation.
Give Technical Term:
Differences occurring within offsprings of the same progeny.
Give Technical Term:
A virus with DNA as heredity material.
Complete the following sentence with appropriate word:
The small differences among individuals are called ________.
Complete the following sentence with appropriate word:
The dissimilar pairs of genes present in an individual are known as _______________.
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:
Multiple choice question.
A cross between an individual with an unknown genotype for a trait with recessive plant for that trait is _______.
Multiple choice question.
When F2 phenotypic and genotypic ratios are the same, then it is an example of _______.
Which one of the following is back cross?
In a dihybrid cross with contrasting characters, the number of different genotypes obtained in F2 generation are ______.
Identify the possible genotypic ratio in F2 generation if a plant producing red flowers (RR) is crossed with another plant of the same species that produces white flower (rr).
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.
Match the items given in Column I with those listed in Column II. Choose the answer with correct combination of alphabets of the two columns.
| Column I | Column II |
| A. Monohybrid cross | 1. T and t |
| B. Test cross | 2. TT |
| C. Alleles | 3. TT × tt |
| D. Homozygous tall | 4. tt |
| 5. Tt × tt |
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?
