Class III - Mendel

Front

Predicted genotypic ratio from a cross of two heterozygous individuals (e.g., Tt x Tt)

Back

1:2:1

Front

The Laws of Segregation and Independent Assortment are due to the random lineup of homologous chromosomes at which stage of cell division?

Back

Metaphase I

Front

A common phenotypic ratio of a dihybrid cross is:

Back

9:3:3:1

Front

Shaded squares in pedigrees refer to what?

Back

Affected Males

Front

An allele is:

Back

A variant of a gene

Front

A carrier for a recessive disorder is:

Back

Heterozygous, no phenotype

Front

Probability that the next child of two unaffected carriers of a recessive disease allele will be affected?

Back

25%

Front

A strain of pea plant that always produces tall offspring is:

Back

true breeding

Front

Height is a 1.___, tall is a 2.____

Back

1. character, 2. trait

Front

I flipped a quarter 6 times and got 6 heads. I expected 3 heads and 3 tails. Is my quarter broken?

Back

No, this is just a low sample size. With more flips (say 1000), the ratio should even out to 50:50