DNA duplication occurs in
meiosis only
meiosis II and mitosis
mitosis only
meiosis I and mitosis
- A chemical mutagen is
- Dyad is
- The genetic constitution of an organism is known as
- A codon is a sequence of 3 nucleolides on
- The chromosomal theroy of heredity implies that
- Colour blindness is caused due to
- How many meiosis will be required to produce 102 pollen-grains ?
- In a monohybrid cross the Fi ratio of a backcross is
- The first person to induce mutations was
- DNA duplication occurs in
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- 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…
- The number of characters investigated by Mendel was
- Linked genes may be separated by the process of
- An offspring of two homozygous parents different from one another by alleles at only one gene locus…
- Base substitutions from base analogues I are called
- A person meets with an accident and great loss of blood has occurred. There is no time to analyse…
- Chromosomes exhibit minimum coiling during
- The segment of DNA which participates in crossing over is known as
- The term 'meiosis' was coined bv
- Mutations which are not dominant are not lost by a gene pooL This is known as
- Transfer of a gene or genes through a virus is called
- Diakinesis is characterised by
- The condition in which only one allele of a pair is present is known as
- Crossing over in meiosis occurs in
- Which one of the following chemical characteristics is not common to all living beings ?
- In humans, an example of sex-linked trait is
- The science dealing with study of inheritance and variation is
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…