A codon is a sequence of 3 nucleolides on
t-RNA
m-RNA
s-RNA
hn-RNA
- How many meiosis will be required to produce 102 pollen-grains ?
- Klinefelter's syndrome is developed when the chromosome in male is
- Mutations which are not dominant are not lost by a gene pooL This is known as
- A giant chromosome having many chromo-nemata lying side by side all along their length is called
- Linked genes may be separated by the process of
- The number of characters investigated by Mendel was
- Diakinesis is characterised by
- A colour-blind man marries the daughter of a colour-blind person. In their progeny
- Which one of the following chemical characteristics is not common to all living beings ?
- Chromosomes exhibit minimum coiling during
- An offspring of two homozygous parents different from one another by alleles at only one gene locus…
- The condition in which only one allele of a pair is present is known as
- The chromosomal theroy of heredity implies that
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
- When is the sex of an offspring decided
- In a monohybrid cross the Fi ratio of a backcross is
- Base substitutions from base analogues I are called
- DNA duplication occurs in
- In humans, an example of sex-linked trait is
- Exhibition of superiority by a hybrid over both of its parents is called
- The best method to determine whether an individual is homozygous or heterozygous is
- Albinism in com plants is best described as
- Colour blindness is caused due to
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- Some people experience PTC paper on tongue as bitter, others as tasteless. This character is hereditary…
- Among the following which is a test cross?
- Which disease results from the genetic inability to synthesize a single enzyme ?
- Down's syndrome is an example of
- Crossing over in meiosis occurs in