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प्रश्न
What is a gene? How is it related to heredity?
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उत्तर
Genes are hereditary units located on a chromosomal thread. A gene can be defined as the “ultimate unit of recombination, mutation, and self-reproduction”. They are responsible for various characteristics externally shown by the plants and animals. A single gene may affect one or more characteristics of offsprings.
संबंधित प्रश्न
The phenotypic ratio of incomplete dominance is ______.
A heterozygous tall plant of pea is crossed with a dwarf plant of pea.
Calculate the phenotypic ratio of the progeny.
Give the significance of mutation.
Explain the Term Heredity.
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.
Write the functional activity of the following structure:
Autosomes
Multiple choice question.
Phenotypic ratio of incomplete dominance in Mirabilis jalapa.
Multiple choice question.
When F2 phenotypic and genotypic ratios are the same, then it is an example of _______.
Explain test cross with suitable example and state its ratios.
State whether the following is true or false.
Each gamete has only one allele of a gene.
Identify the genotype of peacock.
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
Alleles refer to ____________.
The percentage of each gamete out of four different types of gametes produced by the F1 dihybrid will be ________.
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
A pair of corresponding chromosomes of the same shape, size and one from each parent is called ______.
What is dihybrid cross?
Rewrite the correct form of the statement by changing the first or last word only:
The full complement of DNA of an organism is termed as genetics.
