"In human males, all the chromosomes are paired perfectly except one. this/these unpaired chromosomes is/are"
(i) large chromosome
(ii) small chromosome
(iii) Y-chromosome
(iv) X-chromosome

(i) and (ii)

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(iii) only

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(iii) and (iv)

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(ii) and (iv)

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Solution

The correct option is C (iii) and (iv)
In human males, the 23 $^{r d}$ pair of chromosomes, or the sex chromosome pair, is not perfectly paired, and contains one X and one Y chromosomes. This combination determines the gender of the individual in humans.
So, the correct answer is '(iii) and (iv)'

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Similar questions

In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is /are :

(i) large chromosome (ii) small chromosome (iii) Y chromosome (iv) X chromosome

(a) (i) and (ii) (b) (iii) only (c) (iii) and (iv) (d) (ii) and (iv)

Q. The person A has only B chromosomes in all its gametes. On the other hand, another person C has chromosome D in half of gametes and chromosome E in the other half of gametes. When chromosomes B and D combine during fertilisation, a female zygote results. On the other hand, combination of B and E chromosomes produces a male zygote.
(a) What are chromosomes (i) B (ii) D, and (iii) E?
(b) Out of B, D and E, which two chromosomes are of the same type?
(c) Which chromosome is smaller in size?
(d) What is the general name of chromosomes such as B and E?
(e) Out of the two persons A and C, which one is (i) male, and (ii) female?

Question 6
In human males, all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are

(i) Large chromosome
(ii) Small chromosome
(iii) Y-chromosome
(iv) X-chromosome

(a) (i) and (ii)
(b) (iii) only
(c) (iii) and (iv)
(d) (ii) and (iv)

Q. Identify the chromosomal disorder based on the given statements:
i. There is only a partial deletion of chromosome
ii. The deletion is seen in the 5th chromosome
iii. Infants with this disorder have a high pitched cry

For X chromosomes, human females have a pair of allels on the pair of X-chromosomes. But, for traits present on X chromosomes, human males have only one of the alleles. What is this mechanism known as?

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"In human males, all the chromosomes are paired perfectly except one. this/these unpaired chromosomes is/are"(i) large chromosome(ii) small chromosome(iii) Y-chromosome(iv) X-chromosome

The correct option is C (iii) and (iv)In human males, the 23rd pair of chromosomes, or the sex chromosome pair, is not perfectly paired, and contains one X and one Y chromosomes. This combination determines the gender of the individual in humans. So, the correct answer is '(iii) and (iv)'

"In human males, all the chromosomes are paired perfectly except one. this/these unpaired chromosomes is/are"
(i) large chromosome
(ii) small chromosome
(iii) Y-chromosome
(iv) X-chromosome

The correct option is C (iii) and (iv)
In human males, the 23 $^{r d}$ pair of chromosomes, or the sex chromosome pair, is not perfectly paired, and contains one X and one Y chromosomes. This combination determines the gender of the individual in humans.
So, the correct answer is '(iii) and (iv)'