Some of the chromosomes have an elongated knob-like appendage known as telomere.

Some of the polamines are known to behave like

The chromosome associated with sex determination is known as

chromosome having centromere in its middle is

Nereis have lateral appendages called:

Three copies of chromosome-21 in a child with Down's syndrome have been analysed using molecular biology technology to detect any possible DNA polymorphism with reference to different alleles located onchromosome-2 1. Results showed that out of 3 copies 2 of the chromosomes of the child contain the same alleles ,as one of the mother's alleles. Based on this when did the non-disjunction event most likely occur?

In meiosis, the daughter cells contain half the number of chromosomes of the parent cell and is known as:

Assertion (A): Arabidopsis plant chromosome have more repeats of TTTAGGG nucleotide sequence in the telomers. Reason (R ): Restriction endonuclease enzyme is used in the formation of such a nucleotide sequence.

The elongated knob-like appebdages at one end of some chromosome is called as______

Knob like appendages present at one end of the chromsome.