NEW Biology Chapter 12 Exam - Introduction to Genetics

Front

What is Mendel's principle of independent assortment?

Back

The principle stating that alleles for different traits segregate independently of one another during gamete formation.

Front

Define incomplete dominance.

Back

A genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two.

Front

What is codominance?

Back

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

Front

What does the term 'segregation' refer to in genetics?

Back

The separation of alleles during gamete formation, ensuring that each gamete carries only one allele for each gene.

Front

What is fertilization in the context of genetics?

Back

The process in sexual reproduction where male and female reproductive cells (gametes) join to form a new cell (zygote).

Front

What is the F1 generation?

Back

The first filial generation, which is produced by crossing two parental (P1) organisms.

Front

What is the F2 generation?

Back

The second filial generation, which is produced by crossing two F1 individuals.

Front

What does it mean for an organism to be a hybrid?

Back

An organism that has two different alleles for a trait, resulting from the cross of two different purebred parents.

Front

What is the parental generation (P1)?

Back

The original pair of organisms used in a genetic cross.

Front

Explain the concept of linkage in genetics.

Back

Linkage refers to the tendency of genes located close to each other on a chromosome to be inherited together during meiosis.