Plant Genetics

What is the basic unit of heredity?

• Chromosome
• Nucleotide
• Genome
• Gene

What is the term for the physical appearance of an organism?

• Phenotype
• Trait
• Genotype
• Allele

Mendel's Law of Segregation states that:

• Genes are located on chromosomes
• Genes are inherited independently
• Genes occur in pairs
• Genes determine physical traits

What is the probability of getting a homozygous recessive offspring from a heterozygous parent?

• 100%
• 0%
• 25%
• 50%

What is the term for an alternative form of a gene?

• Phenotype
• Genotype
• Allele
• Trait

What is the term for the combination of alleles an organism has for a particular trait?

• Phenotype
• Chromosome
• Genotype
• Trait

What is the likelihood of two heterozygous individuals producing a homozygous recessive offspring?

• 0%
• 75%
• 25%
• 50%

What is the term for the specific location of a gene on a chromosome?

• Genotype
• Trait
• Locus
• Genome

Mendel's Law of Independent Assortment states that:

• Genes are located on chromosomes
• Genes determine physical traits
• Genes are inherited independently
• Genes occur in pairs

What is the likelihood of two heterozygous individuals producing a homozygous dominant offspring?

• 50%
• 25%
• 75%
• 0%