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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