Q. No.Find incorrect match
1. Polygenic inheritance – Spread across of gradient.
2. Pleiotropy – Single gene multiple phenotype.
3. X body of henking – One each in sperm.
4. Pedigree analysis – Mendelian trait.
How many of the following statements are correct?
| 1 | Phenyl ketonuria leads to mental retardness. |
| 2 | Thalassemia is quantitative where as sickle-cell anaemia is qualitative. |
| 3 | Possibility of female becoming haemophilic is extramely rare. |
| 4 | 8% of male & 0.4% of females are haemophilic. |
Options
1. All
2. 3
3. 2
4. 1
Which of the following traits in the garden pea plant would express itself only in homozygous condition?
1. Violet flower color
2. Terminal flower position
3. Green pod color
4. Yellow seed color
All the following are examples of Mendelian disorders except:
1. Hemophilia
2. Sickle cell anemia
3. Phenylketonuria
4. Down's syndrome
The pure line round seeded pea plant was crossed with wrinkled seeded pea plant. The F1 generation is ____ and it can be explained by _____. (respectively)
1. Wrinkled : Law of segregation
2. Round : law of dominance
3. Round : Condominance
4. Wrinkled : Law of dominance
Study the given pedigree chart and choose the correct statement
| 1. | The trait under study is dominant. |
| 2. | Both parents are homozygous. |
| 3. | The trait can be X-linked recessive disease haemophilia. |
| 4. | The trait depicted is autosomal recessive like cystic fibrosis. |
Which one of the following trait is only expressed in the presence of identical allele?
1. Yellow seed
2. Inflated pod
3. Green pod
4. Green seed
An organism with two different alleles is:
1. Homozygous for that trait
2. Homologous for the allele
3. Heterozygous for the trait
4. Heterologous for the allele
1. Franklin Stahl coined the term "linkage".
2. Punnett square was developed by a British scientist.
3. Spliceosomes take part in translation.
4. Transduction was discovered by S. Altman.
Which of the following characteristics represent the 'Inheritance of blood groups' in humans?
a. Dominance
b. Co-dominance
c. Multiple allelism
d. Incomplete dominance
e. Polygenic inheritance
| 1. | b, c, and e | 2. | a, b and c |
| 3. | b, d, and e | 4. | a, c, and e |
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