DNA duplication occurs in
meiosis only
meiosis II and mitosis
mitosis only
meiosis I and mitosis
- The term 'meiosis' was coined bv
- Down's syndrome is an example of
- An offspring of two homozygous parents different from one another by alleles at only one gene locus…
- The scientists who rediscovered the Mendel's laws are
- The segment of DNA which participates in crossing over is known as
- DNA duplication occurs in
- In humans, an example of sex-linked trait is
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- In a monohybrid cross the Fi ratio of a backcross is
- When two genes are situated very close to each other in a chromosome
- Chromosomes exhibit minimum coiling during
- How many meiosis will be required to produce 102 pollen-grains ?
- Reverse transcription was discovered by
- Exhibition of superiority by a hybrid over both of its parents is called
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- Albinism in com plants is best described as
- Transfer of a gene or genes through a virus is called
- A child is bom with an extra chromosome in each of its cells. This is usually the result of
- Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
- Klinefelter's syndrome is developed when the chromosome in male is
- The number of characters investigated by Mendel was
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- Which one of the following chemical characteristics is not common to all living beings ?
- A chemical mutagen is
- A functional unit of a gene which specifies synthesis of one poly-peptide is known as
- The condition in which only one allele of a pair is present is known as
- Mutations which are not dominant are not lost by a gene pooL This is known as
- The nuclear membrane completely disappears during
- Among the following which is a test cross?
- The chromosomal theroy of heredity implies that