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

Subtopic:  Mendelian Disorders: Thalassemia |
 81%
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Find the correct match-

    1. Alpha Thalassemia- 11th chromosome
    2. Beta chromosome- 16th chromosome’
    3. Alpha Thalassemia- linked genes
    4. Thalassemia- Qualitative trait
Subtopic:  Mendelian Disorders: Thalassemia |
 75%
From NCERT
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If Ram has a brother Shyam suffering from Cystic Fibrosis, what is the probability of Ram being a carrier as his parents are normal?

a.1/4

b. ½

c.2/3

d.3/4

Subtopic:  Sex Linked Recessive Inheritance |
 63%
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Which of the four couples claiming the baby O positive blood type are possible biological parents of it?

a. B- and O-

b. O+ and AB+

c. AB+ and AB-

d.A+ and O-

Subtopic:  Dominance Deviation from Mendel: 2 |
 64%
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If two people who are carrier for a genetically inherited fatal recessive disease decide to marry and disease cause still birth. What is the probability of the live children to be a carrier?

a.1/2

b.2/3

c.1/4

d.1/3

Subtopic:  Pedigree Analysis: Problem Solving |
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Assertion : Phenylketonuria is a recessive hereditary disease caused by the body’s failure to oxidize an amino acid phenylalanine to tyrosine, because of a defective enzyme.

Reason : It results in the presence of phenylalanine acid in the urine.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Mendelian Disorders |
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Assertion   :       In honey bee, life history shows natural and complete parthenogenesis.

Reason      :       In honey bee, both drones and workers are parthenogenetically developed.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Sex Determination |
 54%
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A plant, on repeated self pollination, preserves the trait expressed for many generations. Such a plant is said to be:

(1) Panmictic

(2) Homologous

(3) Apomictic                                                

(4) Pure line

Subtopic:  Monohybrid Cross: 1 |
 85%
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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

Subtopic:  Monohybrid Cross: 1 |
 82%
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In a true breeding the allelic pair of genes are

1. Homologous
2. Linked
3. Stable
4. Homozygous

Subtopic:  Monohybrid Cross: 1 |
 58%
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