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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?
A lady wants to buy the following items in the given price range- 1. Tomato between Rs. 40 and Rs. 45 per kg. 2. Grapes in the price range of Rs. 80 and Rs. 90 per kg. 3. Milk packets at Rs. 23 per liter. In which shop from the following will she definitely get all her items/ A. Shop S sells tomato at Rs. 22.5 per half kg, Grapes at Rs. 82 per kg and milk at Rs. 24 per liter. B. Shop H sells grapes at Rs. 21 per quarter kg, milk at 12.5 per half litre and tomato at Rs. 22 per half kg. C. Shop O sells milk at Rs. 11.5 per half litre, tomato at 21 per half kg and grapes at Rs. 43 per half kg. D. Shop P sells tomato at Rs. 23.5 per half kg, grapes at Rs. 85 per kg and milk at Rs. 23 per litre.
The variations occurring due to meiosis are due to the independent segregation of chromosomes during Metaphase II.
Consider the following statements with regard to the functions of the centromere in the chromosome.
1. Centromeres are the centres of movement of the chromatids or chromosomes during anaphase separation.
2. Acentric chromosomes lack the capacity to segregate in a regular fashion.
3. Crosing-over in one arm of a metacentric chromosome does not affect the crossing over in the arm of the same chromosome.
Which of the statements given above are correct?
Consider the following statements regarding the pachytene substage of prophase I during meiosis and choose the correct answer:
1. Pachytene is said to begin when synapsis is completed
2. During pachytene the chromosomes are associated in bivalents or tetrads
3. Shortening and thickening of the chromosomes takes place due to longitudinal contraction
4. Exchange of groups of genes takes place as a result of crossing over
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?
In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of
At the Interphase, the Interphase concentration of the component in both phase phases have equal chemical potential is due to differential concentration.
In the meiosis type cell division, chromatids segregates during
The alignment of the chromosome pairs at the metaphase plate during Meiosis I is dependent on other chromosomal pairs.