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प्रश्न
Explain the Term Recessive character.
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उत्तर
Recessive character: The character which remains hidden in F1 generation and expressed in the second-generation in the ratio of 1:2:1.
संबंधित प्रश्न
A cross used to verify the unknown genotype of the F1 hybrid is a ______.
Which phoenomenon gives 2 : 1 ratio instead of 3 : 1 ratio? Describe with graphical representation.
Differentiate Between Homozygous shows Heterozygous.
Explain the Term Mutation.
Explain the Term Crossing-over.
Complete the following sentence with appropriate word:
In mammals, the female is homozygous while the male is _________.
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.
Write the functional activity of the following structure:
Genes
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).
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.
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 |
In which region of chromosomes does crossing over take place?
A pair of corresponding chromosomes of the same shape, size and one from each parent is called ______.
Name any two genetic diseases in humans.
