Q. No.How sickle cell anaemia is different from Thalassemia?
(1) Being autosomal recessive
(2) Being a blood disease
(3) Being a qualitative disorder
(4) Involvement of mutation
Alpha Thalassemia is controlled by ------- on chromosome number----
(1) Linked gene, 11
(2) Linked gene, 16
(3) Unlinked gene, 11
(4) Unlinked gene, 16
The genes which are involved in alpha Thalassemia are---- and ----- while in beta thalassemia are----.
(1) HBA1, HBB, HBA2
(2) HBB1 HBB2 HBA
(3) HBB1 HBA HBB2
(4) HBA1 HBA2 HBB
Find the correct match-
- Alpha Thalassemia- 11th chromosome
- Beta chromosome- 16th chromosome’
- Alpha Thalassemia- linked genes
- Thalassemia- Qualitative trait
The F1 progeny in monohybrid crosses by Mendel resembled:
1. The parent exhibiting dominant trait completely
2. The parent exhibiting recessive trait completely
3. The parent exhibiting dominant trait partly
4. The parent exhibiting recessive trait partly
Genes which code for a pair of contrasting traits or slightly different forms of the same gene are known as:
1.Alleles
2. Loci
3. Cistrons
4. Introns
What is the ratio of a typical monohybrid test cross?
(1) 2 : 1
(2) 3 : 1
(3) 1: 2 : 1
(4) 1 : 1
When Mendel self hybridized F1 progeny of a dihybrid cross between pure Yellow Round seeded plants and Green Wrinkled plants, he observed that yellow and green colour segregated in a ratio of:
(1) 1 : 1
(2) 3 : 1
(3) 9 : 3 : 3 : 1
(4) 1 : 2 : 1
In 1900 Mendel’s work was rediscovered by:
1. Korana, Nirenberg and Mathei
2. De Vries, Correns and von Tschermak
3. Avery, McCleod and McCarty
4. Watson, Crick and Wilkins
In humans, the mechanism of sex determination is:
(1) XX – XY; male heterogamety
(2) XX – XY; female heterogamety
(3) XX – XO; male heterogamety
(4) XX – XO; female heterogamety
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