Punnett squares
Vocabulary
Random Facts
Mendel's Laws
ALL THINGS GENETICS
100

The allele for blue eyes is "t" while the allele for brown eyes is "T". What percentage of offspring produced by two parents with blue eyes would also have blue eyes?


100%

100

a variant of a gene

allele

100

Who is the father of genetics?

Gregor Mendel
100

Which of Mendel's laws states that the dominant allele will express itself over a recessive allele?

A. Law of Segregation

B. Law of Dominance

C. Law of Mendel

D. Law of Independent Assortment

B. Law of Dominance

100

Is the following a genotype of a phenotype?

Brown Hair

Phenotype

200

What is the ratio of the genotypes for the offspring of a homozygous recessive crossed with a heterozygous?

1:1
200

physical appearance of a trait

phenotype

200

What organism did Mendel study?

Pea plants

200

Which of Mendel's laws states that when chromosomes separate in meiosis, each gamete will receive only one chromosome from each pair?

A. Law of Segregation

B. Law of Dominance

C. Law of Mendel

D. Law of Independent Assortment

A. Law of Segregation

200

Is the following a genotype or a phenotype?

Yy

Genotype

300

What is the phenotypic ratio of a heterozygous crossed with a heterozygous?

3:1

300

having two identical copies of the same gene

homozygous

300

A random change in DNA is called a _______

Mutation

300

Which of Mendel's laws states that the inheritance of one trait does not affect the inheritance of another?

A. Law of Segregation

B. Law of Dominance

C. Law of Mendel

D. Law of Independent Assortment

D. Law of independent assortment

300

2 alleles are different 

heterozygous

400

Brown eyes (B) are dominant to blue eyes (b). Draw a punnett square that shows a homozygous dominant parent crossed with a heterozygous parent to show the percent chance of the offspring having blue eyes.

Genotypes from the offspring: BB or Bb, so the chance of the offspring having blue eyes is 0%. 

400

The breeding of two different individuals

Cross

400

What country did Mendel live in?

Austria

400

Which of the following are not one of Mendel's laws?

A. Law of Segregation

B. Law of Dominance

C. Law of Mendel

D. Law of Independent Assortment

C. Law of Mendel

400

Pieces of DNA that provide instructions to make a certain protein

genes

500

What is the genotypic ratio of a dihybrid cross between a heterozygous and a heterozygous?

9:3:3:1

500

The passing of traits from one generation to the next

Heredity

500

Cells with only one set of genes are called? (created in Meiosis)

Haploid
500

Which law of Mendelian Genetics is broken by codominance? 

The law of dominance

500
Give an example of a homozygous recessive genotype.

(aa, bb, cc, dd, ee, ff, gg, hh, ii, jj, kk, ll, mm, nn, oo, pp, qq, rr, ss, tt, uu, vv, ww, xx, yy, zz)