Unit 4 - Genetics & Heredity

Mutations in humans which cause harmful symptoms are called genetic ________.

A recessive allele will overpower a dominant allele.

The belief that a person's traits are a combination of their parents' traits is called the ______ Theory of Inheritance.

Eye color is determined by the genes we inherit from our parents.

Individuals with even one allele for sickle-cell anemia are immune to ____________.

This is called the Law of _____________ Assortment

The passing of traits from parents to offspring is called ___________.

Mendel then cross-pollinated the two varieties, producing the first filial, or _____ generation.

Traits are controlled by two factors, one dominating the other, which separate when _________ are produced.

Mendel also concluded that a trait may not appear in an individual but can still be passed on to __________.

Mendel then allowed the F1 generation to self-pollinate, producing the second filial, or ____ generation.

Which of the following types of inheritance go against Mendel's laws?

The garden pea is small, easy to grow, quick to mature, and produces many offspring.

Homozygous individuals have two ___________ alleles

What VERY IMPORTANT types of cells in humans are controlled by codominant genes?

Mendel's experiments involved the same plant as Knight's experiment. What was it??

________________ is when an individual is observed to have an "intermediate" or "blended" phenotype.

Mendel also concluded that an individual inherits one of these factors from each ________.

Who was the scientist that determined that some genes followed incomplete dominance inheritance?

___________ traits are traits controlled by multiple genes.

Mendel concluded that the inheritance of specific traits is determined by _________.

Mendel created the parental generation by allowing the two varieties to ____ pollinate separately.

Sex-linked traits coded for on the X chromosome occur more often in _________.

Hemophilia is a _____________ genetic disorder

____________ occur(s) when neither allele is dominant over the other, and both are seen in different parts of the body.

The observed trait, or physical appearance of an individual is called the ____________.

Incomplete dominance is VERY similar to the rejected __________ Theory of Inheritance.

____________ are the source of new alleles.

The traits of the pea plant are difficult to tell apart.

Gregor Johann Mendel also studied the experiments of a British farmer named ____________.

Which of the following is NOT a way mutations can occur?

The differing forms of a single trait are called _________.

Which of the other traits in pea plants had a 3:1 ratio?

What would be the phenotypic ratio of this Punnett Square?

Factors that control different traits are inherited ___________________.

Which of the following is NOT one of the traits of pea plants that Mendel studied?

Codominance only occurs in animals.

Each allele is a slightly different sequence of nucleotides that produces a slightly different _________.

What genotype would be in all the boxes?

What would be the genotypic ratio of this Punnett Square?

Mendel proposed a set of ________ that accurately predict patterns of inheritance.

Which of the following is NOT a human genetic disorder?

Which of the following genotypes will appear with the intermediate phenotype?

What genotype would be in the bottom right box?

Which of the following human traits are controlled by multiple genes?

This is called the Law of ______________.

The F1 generation had all purple flowers.

Heterozygous individuals have two _________ alleles.

Females with one allele for a sex-linked trait and one unaffected allele are called __________.

In Mendel's model of Complete Dominance, dominant alleles will ___________ recessive alleles.

The pea plant can self-pollinate and be cross-pollinated, allowing Mendel to control mating.

_______________ are controlled by genes stored on either the X or Y chromosome.

The genetic make-up of an individual is called the ___________.

What is an example of a sex-linked trait in humans?

In polygenic traits, the number of different phenotypes will _________ if more genes control that trait.

Tattoos are a genetic trait that we inherit from our parents.

Each gene is a sequence of ____________ on an organism's DNA.

Gregor Johann Mendel studied science and mathematics at the University of ________.

This cross led to 705 purple-flowered plants and 224 white-flowered plants.

This ratio of purple to white flowers can be reduced and approximated to a _____ ratio.