Genetics Review

Front

What is an acquired trait?

Back

An acquired trait is a characteristic that is not inherited but developed through experience or environment, such as learning to play an instrument.

Front

What is a dominant trait?

Back

A dominant trait is a genetic characteristic that is expressed in the phenotype even when only one copy of the allele is present.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an individual, consisting of the alleles inherited from both parents.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What are alleles?

Back

Alleles are different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is the difference between a homozygous and heterozygous genotype?

Back

A homozygous genotype has two identical alleles for a trait, while a heterozygous genotype has two different alleles.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is the role of genes in inheritance?

Back

Genes are units of heredity that carry information from parents to offspring, determining traits.

Front

What is selective breeding?

Back

Selective breeding is the process of choosing specific organisms with desirable traits to reproduce, enhancing those traits in future generations.

Front

What is the significance of the number of chromosomes in humans?

Back

Humans have 46 chromosomes, arranged in 23 pairs, which carry genetic information necessary for development and functioning.