A child is bom with an extra chromosome in each of its cells. This is usually the result of
nondisjunction
crossing over
segregation
hybridization
- Lethal genes are those which
- Among the following which is a test cross?
- The scientists who rediscovered the Mendel's laws are
- The genetic constitution of an organism is known as
- Base substitutions from base analogues I are called
- A chemical mutagen is
- A codon is a sequence of 3 nucleolides on
- Crossing over in meiosis occurs in
- Which disease results from the genetic inability to synthesize a single enzyme ?
- Exhibition of superiority by a hybrid over both of its parents is called
- A pure tall pea plant was reared in a soil poor in nutrition and reached the size of a pure dwarf pea…
- The best method to determine whether an individual is homozygous or heterozygous is
- The crossing of a homozygous tall plant with a dwarf would yield plants in the ratio of
- DNA duplication occurs in
- Transfer of a gene or genes through a virus is called
- Which one of the following chemical characteristics is not common to all living beings ?
- Down's syndrome is an example of
- When is the sex of an offspring decided
- The term 'meiosis' was coined bv
- The science dealing with study of inheritance and variation is
- Linkage is
- Colour blindness is caused due to
- The segment of DNA which participates in crossing over is known as
- The chromosomal theroy of heredity implies that
- The condition in which only one allele of a pair is present is known as
- Chromosomes exhibit minimum coiling during
- 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…
- Albinism in com plants is best described as
- The possibilities of hereditary and evolutionary changes are greatest in species that reproduce by