Match List I and List II:
List I List II 
A. Two or more alternative forms of a gene I. Back Cross
B. Cross of F1 progeny with homozygous recessive parent II. Ploidy
C. Cross of F1 progeny with any of the parents            III. Allele
D. Number of chromosome sets in plant  IV. Test cross
Choose the correct answer from the options given below:
1. A-II, B-I, C-III, D-IV
2. A-III, B-IV, C-I, D-II
3. A-IV, B-III, C-II, D-I
4. A-I, B-II, C-III, D-IV
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding | Chromosomal Disorders |
 87%
From NCERT
NEET - 2024
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Match List I with List II:
List I List II
A.   Down's syndrome  I.  \(11^{\text {th }}\) chromosome
B.  \(\alpha\) -Thalassemia  II.  \(' \mathrm{X} '\) chromosome
C.  \(\beta\) -Thalassemia  III.  \(21^{\text {st }}\) chromosome
D.  Klinefelter's
syndrome
IV.  \(16^{\text {th }}\) chromosome

Choose the correct answer from the options given below:
1. A-II, B-III,C-IV, D-I 
2. A-III, B-IV,C-I, D-II 
3. A-IV, B-I, C-II, D-III 
4. A-I, B-II, C-III, D-IV
Subtopic:  Mendelian Disorders | Chromosomal Disorders |
 83%
From NCERT
NEET - 2024
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Given below are two statements:
Statement I: Failure of segregation of chromatids during cell cycle, resulting in the gain or loss of whole set of chromosome in an organism, is known as aneuploidy.
Statement II: Failure of cytokinesis after anaphase stage of cell division resulting in the gain or loss of chromosome is called polyploidy.
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is True but Statement II is False
2. Statement I is False but Statement II is True
3. Both Statement I and Statement II are True
4. Both Statement I and Statement II are False
Subtopic:  Chromosomal Disorders |
From NCERT
NEET - 2024
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Aneuploidy is a chromosomal disorder where chromosome number is not the exact copy of its haploid set of chromosomes, due to :
A. Substitution
B. Addition
C. Deletion
D. Translocation
E. Inversion
Choose the most appropriate answer from the options given below :
1. C and D only
2. D and E only
3. A and B only
4. B and C only
Subtopic:  Chromosomal Disorders |
 79%
NEET - 2024
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