Genetics Unit Test corrections

Front

What is the form of cell division in which the number of chromosomes is halved to produce gametes?

Back

Meiosis

Front

What type of inheritance pattern results when a tall plant (TT) is crossed with a short plant (SS) and a medium plant (TS) results?

Back

Incomplete Dominance

Front

In a Punnett square, if one parent is heterozygous for the dominant trait of having horns and the other is homozygous recessive (no horns), what percentage of the offspring will not have horns?

Back

50%

Front

How do Incomplete Dominance and Co-Dominance differ from a normal Mendelian cross?

Back

The heterozygous genotype has a unique phenotype.

Front

What type of cell division ends with a diploid number of chromosomes?

Back

Mitosis

Front

Define meiosis.

Back

A type of cell division that reduces the chromosome number by half, resulting in four haploid cells, typically gametes.

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous has two identical alleles for a trait, while heterozygous has two different alleles.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.

Front

What is the definition of codominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is the phenotype of a plant with genotype TT?

Back

Tall (dominant trait).