Genetics Questions Online Test 10

Solve Genetics Questions Online Test for 11th and 12th, Bachelor Studies,competitive Examination like CSIR NET, CBSE NEET, IELTS, GRE etc .

1. To eliminate chance factor, Mendel performed

• monohybrid cross
• dihybrid cross
• reciprocal cross
• trihybrid cross

2. Mendel always started his experiment(Monohybrid and Dihybrid cross) with

• any pea plant
• a heterozygous plant
• a pure line plant
• a fresh new plant

Genetics MCQs part 8

Solve Genetics Questions Online Test for 11th and 12th, Bachelor Studies,competitive Examination like CSIR NET, CBSE NEET, IELTS, GRE etc .

1. The botanical name of garden pea is

• Pisum sativum
• Lathyrus odoratus
• Mangifera indica
• Solanum tuberosum

2. Which of the following is a dominant character in pea?

• Wrinkled seeds
• Inflated pod
• Terminal flower
• Dwarf plant

3. Which of the following character was not considered by Mendel?

• Seed coat colour
• Wrinkled or round leaves
• Tallness or dwarfness
• Position of flower

4. An inherited character and its detectable variant is called

• allele
• trait
• gene
• both (A) and (B)

5. Which one of the following best describes a gene?

• A triplet of nucleotide bases
• A specific length of DNA responsible for the inheritance and expression of the character
• A specific length of single stranded RNA
• Both (B) and (C)

6. Mendel’s “factors” are in fact

• units
• chromosomes
• genes
• none of these

7. Who coined the term ‘gene’ for ‘factor’?

• Mendel
• Morgan
• Johannsen
• Punnett

8. Alleles or allelomorphs occupy

• same position on homologous chromosomes
• same position on heterozygous chromosomes
• different position on homologous chromosomes
• different position on heterozygous chromosomes

9. Who proposed the term ‘Allelomorph’?

• Hugo De Vries
• Morgan
• Tschermak
• Bateson

10. Dominant allele means

• an allele whose effect is masked by another allele
• an allele that prevents the expression of the other allele
• an allele without any effect
• an allele which cannot express in presence of other

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Animal Biotechnology MCQs Part 9

1. Introduction of foreign genes for improving genotype is ______________

• Tissue culture
• Immunisation
• Biotechnology
• Genetic engineering

2. Where do the female gonads (paired ovaries) lie?

• Pelvic cavity
• Thoracic cavity
• abdominal
• Scrotal sacs

Genetics MCQs part 7

Solve Genetics Questions Online Test for 11th and 12th, Bachelor Studies,competitive Examination like CSIR NET, CBSE NEET, IELTS, GRE etc .

1. The term “factor” for gene was coined by

• William Bateson
• Johann Mendel
• Johannsen
• F. Griffith

2. Gregor Mendel was born in

• U.K
• Austria
• Russia
• Czechoslovakia

3. Mendel was a

• physiologist
• mathematician
• cytologist
• taxonomist

4. The first scientific study leading to the formulation of laws of inheritance was carried out by

• Darwin
• Hugo De Vries
• Lemarck
• Mendel

5. Under which title was Mendel’s work published in Natural History Society of Brunn?

• Mendel’s Laws of Inheritance
• Experiments in Plant Hybridization
• Experiment on Heredity and Variation
• Origin of Species

6. Mendel’s laws were first published in the year

• 1875
• 1890
• 1928
• 1866

7. The year 1900 A.D. is highly significant for geneticists due to

• chromosome theory of heredity
• discovery of genes
• rediscovery of Mendelism
• principle of linkage

8. The Mendelian principles of inheritance were rediscovered by

• Sutton and Boveri
• Hugo de Vries, Tschermark and Correns
• Lederberg and Tatum
• Morgan

9. Mendel’s work was rediscovered by three biologists from which of the following countries?

• Holland, France and England
• Holland, England and Austria
• Germany, France and England
• Austria, Holland and Germany

10. Mendel selected pea plant because of

• its short life span
• it produced many seeds and large flowers
• many contrasting characters
• all of these

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Animal Biotechnology MCQs Part 8

1. Immediately after ovulation, the mammalian egg is covered by a membrane known as _____

• chorion
• zona pellucida
• corona radiata
• vitelline membrane

2. Each centriole in the mature sperm consist of _______________

• 2 central and 9 peripheral fibrils
• 3 central and 6 peripheral fibils
• 4 central and 5 peripheral fibrils
• 9 central and 2 peripheral fibrils

Protein MCQs Part 9

1. For synthesis of prostaglandins, the essential fatty acids give rise to a fatty acid containing

• 12 carbon atoms
• 16 carbon atoms
• 20 carbon atoms
• 24 carbon atoms

2. All active prostaglandins have at least one double bond between positions

• 7 and 8
• 10 and 11
• 13 and 14
• 16 and 17

3. Normal range of plasma total phospholipids is

• 0.2–0.6 mmol per L
• 0.9–2.0 mmol per L
• 1.8–5.8 mmol per L
• 2.8–5.3 mmol per L

4. HDL2 have the density in the range of

• 1.006–1.019
• 1.019–1.032
• 1.032–1.063
• 1.063–1.125

5.β-lipoproteins have the density in the range of

• 0.95–1.006
• 1.006–1.019
• 1.019–1.063
• 1.063–1.125

6. IDL have the density in the range of

• 0.95–1.006
• 1.006–1.019
• 1.019–1.032
• 1.032–1.163

7. Aspirin inhibits the activity of the enzyme:

• Lipoxygenase
• Cyclooxygenase
• Phospholipae A1
• Phospholipase A2

8. A ’suicide enzyme’ is

• Cycloxygenase
• Lipooxygenase
• Phospholipase A1
• Phospholipase A2

9. In adipose tissue prostaglandins decrease

• Lipogenesis
• Lipolysis
• Gluconeogenesis
• Glycogenolysis

10. The optimal pH for the enzyme pepsin is

• 1.0–2.0
• 4.0–5.0
• 5.2–6.0
• 5.8–6.2

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Correct answers:

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