Genetics Review

Front

What is crossing over?

Back

Crossing over is the process where tiny pieces are exchanged between two sister chromatids during meiosis, leading to genetic variation.

Front

What is a heterozygous genotype?

Back

A heterozygous genotype consists of two different alleles for a particular gene, such as Bb.

Front

What type of inheritance occurs when two alleles blend together?

Back

Incomplete Dominance is a type of inheritance where the traits of two alleles blend together in the phenotype.

Front

What is a haploid cell?

Back

A haploid cell has half the number of chromosomes, represented as (n), compared to a diploid cell.

Front

What is the definition of phenotype?

Back

Phenotype refers to the physical characteristics or traits of an organism that result from the expression of its genes.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, representing the alleles it possesses for a particular trait.

Front

What is co-dominance?

Back

Co-dominance is a form of inheritance where both alleles in a heterozygous genotype are fully expressed, resulting in a phenotype that shows both traits.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene, such as BB or bb.

Front

What is the role of meiosis in genetics?

Back

Meiosis is the process of cell division that produces haploid gametes, ensuring genetic diversity through recombination and independent assortment.

Front

What is the significance of Mendelian inheritance?

Back

Mendelian inheritance describes the patterns of inheritance that are characteristic of organisms that reproduce sexually, based on Gregor Mendel's laws.