6th Biology Term 2 Exam

Genetics is _________________.

• the study of cell structure an dfunction

• the study of heredity

• the study of life

• the study of the aging process

Segments of DNA that contain information that help make up our inside and outside characteristics are called ____________.

• genes

• traits

• RNA

• phenotypes

A dominant allele is ___________________________.

• a trait that is hidden by another trait

• a trait that prevents the showing of other traits

• a trait that has been altered by a DNA mutation

• a trait that will not be seen in the next generation of offspring

What are gametes?

• Sperm or eggs that contain half the number of chromosomes as the body cells.

• What your chromosomes say your features are.

• Offspring from two parents.

• Segments of DNA that contain information that help make up our inside and outside characteristics.

What is cellular division that produces gametes with half the number of chromosomes called?

• Diploid

• Dominant

• Meiosis

• Mitosis

What does homozygous describe?

• A gene that is not expressed when paired with a dominant allele.

• A trait produced from two different alleles.

• A trait produced from two alleles that are alike.

• The different forms that genes can be.

A large strand of DNA that typically contains more than a thousand genes is called a/an

• centriole

• organelle

• chromosome

• allele

The different forms that genes can be are known as ___________________.

• zygotes

• phenotypes

• genotypes

• alleles

The gene that is fully expressed when two different alleles are present is the _________________________.

• dominant allele

• genetype

• recessive allele

• phenotype

What does heterozygous describe?

• A gene that is not expressed when paired with a dominant allele.

• A trait produced from two different alleles.

• A trait produced from two alleles that are alike.

• The different forms that genes can be.