Genetics & Heredity Knowledge Check

Who is often referred to as the 'Father of Genetics' and conducted experiments with pea plants to establish the basic principles of heredity?

• Charles Darwin

• Gregor Mendel

• Thomas Hunt Morgan

• James Watson

Tags

NGSS.HS-LS3-2

Which of the following terms BEST describes two or more forms of the same gene?

• Alleles

• Diploid

• Chromatids

• Chromosomes

Which of the following is homozygous recessive?

• ss

• Ss

• SS

• sS

Which term refers to the observable physical characteristics or traits of an organism?

• Genotype

• Phenotype

• Gene

• Heredity

What term is used to describe an organism that has two different alleles for the same gene?

• Homozygous

• Heterozygous

• Dominant

• Recessive

A certain plant species produces flowers that are either purple or white. The purple color is found to be dominant to the white. Using P as the symbol, what are the possible genotypes of the purple flowers?

• PP, Pp

• PP, pp

• Pp, pp

• PP only

Tags

NGSS.HS-LS3-2

Chromosomes are thread-like structures composed of a long strand of RNA containing many genes.

• True

• False

A dominant allele is masked by the presence of a recessive allele.

• True

• False

Heredity is the process by which parents pass characteristics or traits on to their offspring.

• True

• False

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Differentiate between an ‘allele’ and a ‘gene’.