Genetics and Heredity

An organism's inherited appearance is called _______.

• genotype
• phenotype
• chromosome
• DNA

Different forms of a single gene are called a(n) _________.

• gene
• chromosome
• allele
• genotype

A trait that is apparent only when two recessive alleles for the same characteristic are inherited is called

• dominant
• recessive
• homozygous
• heterozygous

TRUE OR FALSE: A coiled structure of DNA and protein that forms in the cell nucleus during cell division is called a chromosome.

• True
• False

Tags

NGSS.HS-LS3-1

TRUE OR FALSE: If at least one allele is a capital letter in the pair of genes, the recessive trait will be dominant.

• True
• False

TRUE OR FALSE: Segments of DNA that carry hereditary instructions and are passed from parent to offspring and are located on the chromosomes are called alleles.

• True
• False

Tags

NGSS.HS-LS3-1

TRUE OR FALSE: A genotype of NN would be heterozygous.

• True
• False

TRUE OR FALSE: A genotype of mm would be homozygous recessive.

• True
• False

TRUE OR FALSE: A genotype of Ss would be heterozygous.

• True
• False

The passing of genetic traits from parent to offspring is called

• cross-pollination
• cross-breeding
• heredity
• genetics

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2