The Theory Of The Gene by Thomas Hunt Morgan

1. What organism did Morgan use for his experiments?

A) Mice
B) Fruit flies (Drosophila melanogaster)
C) Worms
D) Peas

2. What did Morgan discover about genes?

A) They are made of proteins.
B) They are found in the nucleus.
C) They are inherited randomly.
D) They are located on chromosomes.

3. What term describes the observable traits of an organism?

A) Genotype
B) Phenotype
C) Allele
D) Karyotype

4. What type of inheritance pattern did Morgan study?

A) Codominance
B) Incomplete dominance
C) Sex-linked inheritance
D) Autosomal dominant

5. What is the significance of the concept of linkage?

A) Genes close together on a chromosome are inherited together.
B) All genes are unlinked.
C) Genes can change position on chromosomes.
D) Linkage causes mutations.

6. What is a linked gene?

A) A gene that has multiple alleles.
B) A gene located on the same chromosome as another gene.
C) A gene involved in epistasis.
D) A gene that is non-functional.

7. What did the term 'crossing over' refer to?

A) The exchange of genetic material between homologous chromosomes.
B) The mutation in genes.
C) The separation of sister chromatids.
D) The fusion of gametes.

8. What does the term 'recombination' refer to?

A) The alteration of DNA sequences.
B) The cloning process.
C) The re-assortment of genetic material during meiosis.
D) The mixing of species.

Created with That Quiz — where a math practice test is always one click away.