Chromosomal abberation | Genetics | BIOLOGY | NEET |

BIOLOGY CLASS 10

Moment of Inertia | IIT JEE | NEET | CBSE

Write an essay on chromosomal aberrations, giving their cytological and genetic effects.

What are homologous chromosomes? Contrast the genetic makeup of sister chromatids with nonsister chromatids.

The initial clue about the genetic/chromosomal mechanism of sex determination can be traced back to some of the experiments carried out in

The chromosome number in meiocytes of human being is ____A____ while genetic constitution of their male gametes may be represented by_____B_____.Choose the option that fills the blanks correctly.

Due to nondisjunction of chromosomes during spermatogenesis , sperms carry both sex chromosomes ( 22A +XY ) and some sperms do not carry any sex chromosomes ( 22A+ X ) , what types of genetic disorder appear among the offsprings ?

What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg?

A chromosome with sub terminal centromere is (a) Telocentric chromosome (b) Acrocentric chromosome (c) Metacentric-chromosome (d) Sub-metacentric chromosome

Chromosome maps/genetic maps were first prepared by