The chromosomes are the fibre-like structures that are composed of proteins and DNA. They are located inside the nucleus in the eukaryotic and prokaryotic cells. The chromosomes exist in a variety of shapes, one of which is known as acrocentric. The acrocentric chromosome has its centromere slightly far from the center but not at the very end of the chromosome.
Humans have a total of 23 pairs of chromosomes, out of which five are acrocentric chromosomes. They are numbered as 13, 14, 15, 21 and 22. The one arm of these chromosomes is prominently poor in genes. The Down syndrome is the result of an extra acrocentric chromosome 21.
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
A woman who is heterozygous, Bb, has brown eyes;
Explain why familial breast cancer shows a dominant pattern of inheritance in
How is an F′ factor different from an F factor?
With regard to the timing of conjugation, explain why the recipient
The raw material for evolution is random mutation. Discuss whether or
Why is an antibody used in this experiment? From
Explain the type of speciation (allopatric, parapatric, or sympatric
In fruit flies, curved wings are recessive to straight wings,
A recessive allele in mice results in an unusally long neck.
