Mendel and the Gene

Question 1

Character

Answer 1

the attribute governed by a gene

Question 2

Trait

Answer 2

the phenotype for an allele

Question 3

Blending Inheritance

Answer 3

parental traits blend such that their offspring have intermediate phenotypes. Incorrect hypothesis

Question 4

Inheritance of Acquired Characteristics

Answer 4

parental traits are modified and then passed on to their offspring.

Question 5

Principle of Segregation

Answer 5

This splitting of the two alleles during the production of gametes

Question 6

When does the Principle of Segregation occur?

Answer 6

Meiosis I when homologous chromosomes separate

Question 7

Testcross

Answer 7

a dihybrid cross to test an unknown genotype.

Question 8

Principle of Independent Assortment

Answer 8

Different genes are transmitted independently of one another

Question 9

Autosomes

Answer 9

non-sex chromosomes

Question 10

Linked genes

Answer 10

On the same chromosome

Question 11

Incomplete Dominance

Answer 11

Heterozygotes have Intermediate phenotypes. Not clearly dominant/recessive

Question 12

Codominance

Answer 12

Both traits are displayed in a heterozygote

Question 13

Pleiotropic genes

Answer 13

A single gene nfluences many traits

Question 14

Phenylketonuria

Answer 14

recessive disease with a phenotype that manifests only when phenylalanine is in the diet.

Question 15

Qualitative Traits

Answer 15

Ones with normal distribution

Question 16

Polymorphism

Answer 16

In a population, there is more than one phenotype associated with a single gene

Question 17

Polygenic inheritance of quantitative traits

Answer 17

A trait that exhibits continuous variation rather than coming in distinct types