N4 2.4 Genetic Information

A ___________________ is a short section of DNA which contribute to characteristics or traits of an organism

• gene

• chromosome

• nucleus

• cell

Which of the following genotype is homozygous recessive?

• Rr

• RR

• rr

• All of them

Which term describes the different forms of a gene?

• Chromosome

• Allele

• DNA

• Punnett Squares

A phenotype is

• Physical appearence

• Dominance

• Recessiveness

• Letter combinatons

Which of the following matches the description of a chromosome?

• Different forms of a gene

• Threadlike structures made of DNA molecules that contain the genes

• A complex molecule containing the genetic information that makes up the chromosomes.

• A segment of DNA on a chromosome that codes for a specific trait

A genotype composed of two identical alleles

• heterozygous

• homozygous

• dominant

• recessive

A genotype composed of two different alleles

• homozygous

• heterozygous

• dominant

• recessive

Which of the following is an example of a dominant allele?

• A

• a

Which of the following is an example of a recessive allele?

• A

• a

What would the genotype Tt be termed as?

• Heterozygous

• Homozygous Dominant

• Homozygous Recessive