9.1 Review - Mendelian Genetics

Passing on traits from parents to offspring

• Chromosome

• Genotype

• Heredity

• Allele

Tt is-

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

If a pea plant were homozygous recessive for height, how would its alleles be represented?

• TT
• Tt
• tt
• tT

A __________ is a segment of DNA that codes for a particular protein, which leads to a particular trait.

• Gene
• Allele
• Codon
• Nucleotide

Which of the following best describes a GENOTYPE?

• The allele/genetic makeup of an organism.
• The physical expression of a trait.

The dominant trait in this punnett square is

• yellow pea seeds
• green pea seeds
• there is no dominant seed

A _______ is an alternative form a gene.

• chromosome

• sister chromatid

• allele

• telomere

a trait that is always expressed if present is _____________________

• Recessive

• Dominant

• Strong

• True

a trait that is masked unless 2 copies are present is ________________________

• recessive

• dominant

• weak

• hidden

alleles for a trait that are the same

• Homozygous

• Heterozygous

• Quasizygous

• Juxtazygous