10th Class Biology Chapter 7 Test07. Inheritance

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Alleles are:
   1. Different forms of a gene located at the same locus
   2. Different species of organisms
   3. Mutated chromosomes
   4. Copies of RNA molecules
2. Which of the following best defines a gene?
   1. A segment of RNA that produces proteins
   2. A sequence of amino acids
   3. A unit of inheritance found in DNA
   4. A type of chromosome
3. A dihybrid cross involves:
   1. One trait
   2. Two traits
   3. Three traits
   4. Four traits
4. Which part of the chromosome is responsible for protecting it from degradation?
   1. Centromere
   2. Telomere
   3. Chromatid
   4. Histone
5. In a test cross, if all offspring display the dominant trait, the parent with the dominant phenotype is:
   1. Heterozygous
   2. Homozygous
   3. Mutated
   4. Recessive
6. What is a genotype?
   1. The visible traits of an organism
   2. The genetic makeup of an organism
   3. The protein synthesis process in an organism
   4. The evolutionary history of a species
7. The law of segregation explains:
   1. Independent assortment of alleles
   2. Separation of alleles during gamete formation
   3. Dominance of one trait over another
   4. Mutation in genes
8. Inheritance is the process by which traits are:
   1. Lost over generations
   2. Passed from parents to offspring
   3. Created by mutations only
   4. None of these
9. Mendel’s conclusion that each parent contributes one factor (allele) for each trait is known as:
   1. Law of Mutation
   2. Law of Independent Assortment
   3. Law of Segregation
   4. Law of Evolution
10. In Mendel’s monohybrid cross, the F2 genotypic ratio was:
    1. 0.084027777777778
    2. 0.12569444444444
    3. 0.04306712962963
    4. 9:3:3:1