What is wrong with respect to sex determination in honey bee?

    1. Unfertilized egg develops as a male by means of parthenogenesis.
    2. Union of sperm and egg develops as a female
    3. All workers and males will have 16 chromosomes while queen will have 32 chromosomes.
    4. Males produce sperms by mitosis.

Subtopic:  Sex Determination: Further Considerations |
 76%
From NCERT
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What is the special characteristic feature of haplodiploid sex determination?
1. Males produce sperms by mitosis
2. Number of sets of chromosomes present in progenies will decide their sex
3. Workers will have a diploid set of chromosomes.
4. Drones will have a haploid set of chromosomes.

Subtopic:  Sex Determination: Further Considerations |
From NCERT
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Colour Blindness is ------- due to defect in either----- or---- ------ of eye.

    1. Sex-linked recessive disorder, red, orange rods
    2. Sex-linked dominant disorder, red, green rods
    3. Sex-linked dominant disorder, red orange cones
    4. Sex-linked recessive disorder, red , green cones
Subtopic:  Sex Linked Recessive Inheritance |
 86%
From NCERT
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Which of the following is an autosomal recessive blood disease?

    1. Phenylketonuria
    2. Thalassemia
    3. Haemophilia
    4. Muscular dystrophy
Subtopic:  Mendelian Disorders |
 66%
From NCERT
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Which of the following are correct with respect to Thalassemia?

    1. An autosomal dominant disorder
    2. Defect due to mutation or deletion
    3. Parents will be homozygous for thalassemia
    4. Occurs due to vitamin deficiency
Subtopic:  Mendelian Disorders: Thalassemia |
 73%
From NCERT
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Read the following statements with respect to Thalassemia and find the wrong one.

    1. Quantitative disorder
    2. Different forms of Thalassemia are observed
    3. Anaemia is not a characteristic feature of this disease
    4. Defect due to mutation and deletion
Subtopic:  Mendelian Disorders: Thalassemia |
 82%
From NCERT
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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
Subtopic:  Mendelian Disorders: Thalassemia |
 87%
From NCERT
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The basis of Thalassemia classification can be-

    1. Which parent is affected
    2. Which chain of haemoglobin molecule is affected
    3. How much a chain is affected
    4. Which gender is showing the disease
Subtopic:  Mendelian Disorders: Thalassemia |
 82%
From NCERT
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Alpha Thalassemia is controlled by ------- on chromosome number----

    1. Linked gene, 11
    2. Linked gene, 16
    3. Unlinked gene, 11
    4. Unlinked gene, 16
Subtopic:  Mendelian Disorders: Thalassemia |
 75%
From NCERT
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Which of the following statements is wrong with respect to beta Thalassemia?

    1. Controlled by a single gene.
    2. Gene involved is HBA1
    3. Gene involved is present on chromosome number 11
    4. Occurs due to mutation
Subtopic:  Mendelian Disorders: Thalassemia |
 70%
From NCERT
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