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प्रश्न
Give Technical Term:
A twin consisting of a brother and a sister were born to a lady. What is the name of such a type of twins?
उत्तर
Non-identical or fraternal twins
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संबंधित प्रश्न
Which phoenomenon gives 2 : 1 ratio instead of 3 : 1 ratio? Describe with graphical representation.
Give the significance of mutation.
What is crossing-over? What are the factors affecting it?
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.
Explain the Term Mutation.
Name the following:
The study of heredity and variation.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A female is responsible for the sex of the progeny.
Choose the Odd One Out
Multiple Choice Question
When an individual has both the genes of a contrasting character, it is said to be:
Multiple choice question.
In a dihybrid cross, F2 generation offsprings show four different phenotypes while the genotypes are _______.
Hybrid is an offspring from a cross between genetically different parents.
Identify the genotype of a round seeded tall plant which when crossed with a plant of similar genotype produces the following percentage of phenotypes:
(tall round = 56.25 %, tall wrinkled = 18.75 %, dwarf round = 18.75 %, dwarf wrinkled = 6.25 %.)
Which one of the following genotype will yield only one type of gamete?
Define Alleles.
Which of the following is the number of alleles for blood group in an individual?
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 |
