PrinGen.17Feb2023

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What is genetics?

• The scientific study of the origin of life on Earth

• The scientific study of the structure and function of cells

• The scientific study of heredity and the variation of inherited traits in living organisms

• The scientific study of the Earth's atmosphere and climate

Answer explanation

Genetics is the scientific study of heredity and the variation of inherited traits in living organisms.

Match the following

• Genetics

• The scientific study of heredity and the variation of inherited traits in living organisms.

• Cytology

• refers to the passing of genetic traits or characteristics from one generation to the next.

• Biotechnology

• The scientific study of the origin of life on Earth.

• Evolution

• The scientific study of the structure and function of cells

• Inheritance

• Involves the use of living organisms or their cellular and molecular components to create new technologies and products.

What did Gregor Mendel study in his experiments with pea plants?

• The role of chromosomes in inheritance

• The process of bacterial transformation

• The patterns of inheritance for various traits, such as flower color and seed shape

• The genetic material responsible for bacterial transformation

Answer explanation

The patterns of inheritance for various traits, such as flower color and seed shape.

What did Thomas Hunt Morgan study in his fruit fly experiments?

• The patterns of inheritance for various traits in pea plants

• The connection between genes and chromosomes in fruit flies

• The role of chromosomes in bacterial transformation

• The role of DNA in bacterial transformation

Answer explanation

The connection between genes and chromosomes in fruit flies.

What did Frederick Griffith demonstrate in his bacterial transformation experiments?

• The transfer of genetic material from virulent to non-virulent bacteria

• The role of chromosomes in inheritance

• The process of protein synthesis in bacteria

• The role of plasmids in bacterial transformation

What did Avery, MacLeod, and McCarty demonstrate in their experiments on Streptococcus pneumoniae?

• The role of DNA as the genetic material responsible for bacterial transformation

• The role of proteins in bacterial transformation

• The role of RNA in bacterial transformation

• The role of lipids in bacterial transformation

If DNA is the one inserted by bacteriophage, and P is labelled radioactive (gives off signal), where would you find the radioactive signal?

• In the supernatant liquid

• In the pellet

Which of the following is correct?

• Yy is homozygous dominant.

• YY is heterozygous.

• yy is homozygous recessive.

• YY is homozygous recessive.

Which of the following represents a heterozygous genotype?

• Aa

• AA

• aa

• Ab