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HSSC Laboratory Asst. / Dt.-01-01-2023 Morning Shift (Cat. No. 11,12,13,14,15)
📆 December 16, 2024
Total Questions: 100
51.
Name the mapping technique used to determine the position of restriction sites in a DNA molecule-
(a) Genetic mapping
(b) Restriction mapping
(c) Biochemical markers
(d) DNA markers
Correct Answer:
(b) Restriction mapping
52.
Which of the following pairs is wrongly matched?
(a) ABO blood group - Discrete units
(b) Multiple alleles - Female Drosophila
(c) Heterogametic - Phenylketonuria
(d) Inborn error - ABO blood group
Correct Answer:
(c) Heterogametic - Phenylketonuria
53.
In humans, the mechanism of sex determination is-
(a) XX-XY: male heterogamety
(b) XX-XY: female heterogamety
(c) XX-XO: male heterogamety
(d) XX-XO: female heterogamety
Correct Answer:
(a) XX-XY: male heterogamety
54.
The female children of a haemophiliac man and carrier woman are likely to be-
(a) All haemophiliacs
(b) Half haemophiliac and half carriers
(c) All carriers
(d) Half normal and half carriers
Correct Answer:
(a) All haemophiliacs
55.
Two organelles responsible for cytoplasmic inheritance among eukaryotes are-
(a) Lysosomes and mitochondria
(b) Golgi apparatus and mitochondria
(c) Nucleus and mitochondria
(d) Chloroplasts and mitochondria
Correct Answer:
(d) Chloroplasts and mitochondria
56.
Kappa particles indicate-
(a) Cytoplasmic inheritance
(b) Mutations
(c) Nucleo-cytoplasmic inheritance
(d) Nuclear inheritance
Correct Answer:
(a) Cytoplasmic inheritance
57.
Drosophila flies, with one half of the body as male and the other half female, are referred to as
(a) Gynandromorph
(b) Hermaphrodite
(c) Super female
(d) Intersex
Correct Answer:
(a) Gynandromorph
58.
Which of the following is a default pathway in Drosophila?
(a) Development of male characters
(b) Repression of male characters
(c) Development of female characters
(d) All pathways are induced
Correct Answer:
(a) Development of male characters
59.
Genetic combination of AA: XYY in Drosophila gives a-
(a) Female
(b) Non-viable female
(c) Male
(d) Non-viable male
Correct Answer:
(c) Male
60.
Genes for which of the following characters in Drosophila were found to be very tightly linked by Morgan?
(a) Eye colour and wing size
(b) Body colour and wing size
(c) Wing colour and eye colour
(d) Body colour and eye colour
Correct Answer:
(d) Body colour and eye colour
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