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प्रश्न
Define the following term:
Gene
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उत्तर
Genes are specific sequences of nucleotides on a chromosome that encode particular proteins which are expressed in the form of some particular feature of the body. They are the units of heredity which are transferred from parents to offspring and are responsible for some specific characteristics of the offspring.
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संबंधित प्रश्न
What is a gene? How is it related to heredity?
- A pure tall plant (TT) is crossed with a pure dwarf plant (tt). Draw Punnett squares to show
- F1, generation
- F2 generation.
- Give the phenotype of F2 generation.
- Give the phenotype and genotypic ratios of the F1 and F2 generations.
Explain the Term Dominance.
Explain the Term Mutation.
Explain the Term Recessive character.
Explain the Term Genotype.
Give Technical Term:
Cell organelle directly involved in genetics.
Complete the following sentence with appropriate word:
The physical expression of genes is called _________.
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.
In a dihybrid cross, F2 generation offsprings show four different phenotypes while the genotypes are _______.
Explain test cross with suitable example and state its ratios.
Enlist dominant and recessive characters in pea plant with respect to the position of flower, colour of seed and colour of a pod in tabulated form.
______ type/s of gametes is/are expected to be formed by the organism with genotype AABBCC.
Which one of the following genotype will yield only one type of gamete?
A normal visioned woman whose father is colourblind married a normal visioned man. What are the probabilities of her sons or daughters to be colourblind? Explain with the help of Punnett square.
During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.
Two alternative forms of genes or alleles are located on ______.
Which of the following is the number of alleles for blood group in an individual?
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
