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Question
Complete the following sentence with appropriate word:
______is the hereditary unit.
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Solution
Gene is the hereditary unit.
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RELATED QUESTIONS
Which phoenomenon gives 2 : 1 ratio instead of 3 : 1 ratio? Describe with graphical representation.
Choose the correct answer:
Mendel was born in __________
Differentiate Between Homozygous shows Heterozygous.
Complete the following sentence with appropriate word:
In mammals, the female is homozygous while the male is _________.
Complete the following sentence with appropriate word:
The small differences among individuals are called ________.
Complete the following sentence with appropriate word:
Upon _______the diploid condition is restored.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
DNA has a double-helical structure.
Multiple Choice Question
Genetics is a branch of biology dealing with:
A recessive factor is altered by the presence of a dominant factor.
Alleles refer to ____________.
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 ______
Two alternative forms of genes or alleles are located on ______.
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?
A typical dihybrid cross is carried outbetween true breeding plant with yellowround seeds and a true breeding plant withgreen wrinkled seeds. With appropriatesymbol write the genotypes of —
- Homozygous dominant and recessive parents.
- Gametes produced by both the parents.
- Gametes produced by the F, hybrid. (3)
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 ______.
What is dihybrid cross?
