Science Review

Mendel controlled which plants ____ other plants.

• he cross-pollinated
• he watered
• he observed
• he planted

If two alleles of a gene are different, its genotype is...

• hemizygous
• polygenic
• homozygous
• heterozygous

Chromosomes are made of proteins and deoxyribonucleic acid, ____, which is an organisms genetic material.

• RNA
• Protein
• Chromatin
• DNA

Each series of three nitrogen bases on mRNA

• nucleotide sequence
• triplet
• codon
• anticodon

Mendel concluded that two _____ control each trait.

• alleles
• traits
• chromosomes
• genetic factors

What plant self-pollinates; it always produces offspring with traits that match its parent.

• true-breeding plants

• cross-breeding plants

• alleles

• chromosomes

occurs when multiple genes determine the phenotype of a trait.

• Incomplete dominance
• Monogenic inheritance
• Codominance
• Polygenic inheritance

4 nitrogen bases are what?

• adenine

• crytosine

• thymine

• guanine

• uracil

A change in the nucleotide sequence of a gene.

• Translation
• Transcription
• Replication
• Mutation

a model that is used to predict possible genotypes and phenotypes of offsping

• Genetic calculator
• Punnett square
• Phenotype diagram
• Genotype chart