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प्रश्न
Give Technical Term:
A virus with DNA as heredity material.
उत्तर
Retro virus e.g. HIV
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संबंधित प्रश्न
A cross used to verify the unknown genotype of the F1 hybrid is a ______.
What is a gene? How is it related to heredity?
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 Crossing-over.
Complete the following sentence with appropriate word:
The dissimilar pairs of genes present in an individual are known as _______________.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Mutation can be brought about artificially.
Choose the Odd One Out
Choose the Odd One Out
Explain a dihybrid cross with suitable example and checker board method.
Which one of the following is back cross?
Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.
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).
Alleles refer to ____________.
The percentage of each gamete out of four different types of gametes produced by the F1 dihybrid will be ________.
A pea plant with the genotype YyRr is crossed with another pea plant with the genotype yyrr. The expected phenotypic ratio of individuals formed will be ______
Define Alleles.
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 |
An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?
Name any two genetic diseases in humans.
