Bissoy.com
Doctors Medicines MCQs Q&A

Centrioles are the primary constrictions of chromosomes.

Centrioles are the primary constrictions of chromosomes. Correct Answer False

Chromosomes form when chromatids condense during reproduction. Centromeres are the primary constrictions of chromosomes. Based on the position of centromeres, chromosomes can be classified into acrocentric, metacentric, sub-metacentric and telocentric chromosomes.

Related Questions

A few chromosomes have non-staining constrictions at a constant location. What are these constrictions called?
In each diploid set of chromosomes, two homologous chromosomes have additional 'constrictions' called
Consider the following processes which are preparatory to cell division during interphase and choose the correct answer:
1. Replication of DNA takes place
2. The centrioles divide, forming a pair of new centrioles
3. Synthesis of energy-rich compounds which provide energy for mitosis
4. Synthesis of proteins which are later found in the spindle
Leptotene chromosomes may be irregularly arranged or may be polarized towards the centrioles forming
Consider the following statements regarding Genome Sequencing: 1. Genome sequencing is figuring out the order of DNA nucleotides, or bases, in a genome—the order of Adenine, Cytosine, Guanines, and Thymine that make up an organism's DNA. 2. Human genome is made up of 46 chromosome pairs with a total of about 3 billion DNA base pairs. 3. There are 24 distinct human chromosomes: 22 autosomal chromosomes, plus the sex-determining X and Y chromosomes. Which of the statements given above is/are correct?
Of the two diploid species, species I has 36 chromosomes and species II has 28 chromosomes. How many chromosomes would be found in an allotriploid individual?
Consider the following statements regarding supernumerary chromosomes and choose the correct answer:
1. They are not homologous with any of the normal chromosomes
2. They form synapses among themselves
3. They are generally smaller than normal chromosomes
4. They are found more commonly in plants than in animals
Consider the following statements.
1. Human beings have 23 pairs of chromosomes.
2. Sex chromosome in human male are named XY.
3. Chromosomes are best seen in metaphase.
Which of the statements given above is/are false about chromosomes?
Assertion (A) Human beings have 23 pair of chromosomes, one of which is the sex chromosomes and the remaining are 22 autosomes. The X-linked disease are related to mutation on a sex chromosomes.
Reason (R) Colour blindness results from a mutation in X-chromosome.
Consider the following statements.
1. Allosomes, i.e. chromosomes which are responsible for determination of sex e.g. X and Y chromosomes.
2. Autosomes, i.e. chromosomes, which determine the somatic characters.
Which of the statement(s) given above is/are true?