Genetics Challenge Worksheet

the abbreviation for deoxyribonucleic acid?

DNA

a member of a gene pair that determines a specific trait is a(an) ______________.

allele

____________________ is known as the father of genetics

Mendel

a ___________ has genes that are different for a trait, such as Tt.

hybrid

The actual gene makeup of an organism is its _______________.

genotype

___________ are physical characteristics of an organism that are passed down from one generation to the next.

traits

___________________ ____________________________ is a condition in which neither of the two genes in a gene pair masks the other (they are both expressed equally)

incomplete dominance

___________________________ are rod-shaped structures found in the nucleus of every cell in an organism.

chromosomes

a _________________ trait is expressed when two different genes for the same trait are present.

dominant

the physical appearance of a trait is called the ____________________.

phenotype

Mendel experimented with ________ _________ to learn about genetics.

pea plants

a ____________________________ gene pair consists of two dominants alleles or two recessive alleles.

homozygous

according to the _______ of _______________________ one gene from each gene pair goes to each sex cell.

Law; segragation

The traits of an organism are controlled by its __________________.

genes

a __________________ ___________________ is a chart used to show the possible gene combinations in across between two organisms.

punnett square

a _______________________ gene pair that consists of a dominant allele and a recessive allele.

heterozygous

the _________ ___________ generation i the offspring of the P, or parental, generation.

first filial

a ______________ is a scientist who studies heredity

geneticist

a _________________ traits seems to disappear when two different genes for the same trait are present/

recessive

organisms inherit genes in pairs. one from each _________.

parent

_________________ is the study of heredity

genetics

the ________ of independent ________________________ states that each gene pair is inherited independently of the gene pairs for other traits.

law; assortment