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Which of the following is/are true? i. All children will inherit an X chromosome from their mothers. ii. All children will inherit a Y chromosome from their mothers. iii. A child who inherits an X chromosome from the father will be a boy. iv. A child who inherits an X chromosome from the father will be a girl.
Consider the following statements about visible light, UV light and X-ray.
1. The wavelength of visible light is more than that of X-ray.
2. The energy of X-ray photons is higher than that of UV light photons.
3. The energy of UV light photons is less than that of visible light photons.
Which of the statement(s) given above is/are correct?
The location of various genes on a chromosome relative to specific microscopically visible landmark on the chromosome is called
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?
If two breaks occur in one chromosome, and one in a non-homologous one, the fragment from the first chromosome may become joined in an intercalary position in the second chromosome. This is a case of
A male plant of chromosome pp pollinates the plant having chromosome type PP. The expected chromosome in embryo and endosperm
Consider the following statements regarding centromere and choose the correct answer:
1. The position of the centromere is constant for a particular chromosome
2. The structure and function of the centromere are different from that of the rest of the chromosome
3. During division the centromere is functional, while the rest of the chromosome is genetically inactive
4. The position of the centromere varies in different chromosomes
The fees of primary section (X) increases by Rs. 40 every year, while the fees of secondary section (Y) increases by Rs. 30 every year. If in 2003, the fees of primary section was Rs. 420 and that of secondary section was Rs. 630, then in which year primary section will have Rs. 40 more fees than the secondary section? 
There are five hobby clubs in a college viz., photography, yachting, chess, electronics and gardening. The gardening group meets every second day, the electronics group meets every third day, the chess group meets every fourth day, the yachting group meets every fifth day and the photography group meets every sixth day. How many times do all the five groups meet on the same day within 180 days?
There are five hobby clubs in a college - photography, yachting, chess, electronics and gardening. The gardening group meets every second day, the electronics group meets every third day, the chess group meets every fourth day, the yachting group meets every fifth day and the photography group meets every sixth day. How many times do all the five groups meet on the same day within 180 days?