Honors Biology Spring Midterm Review III | Baamboozle - Baamboozle

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Mendelian Genetics

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#Genetics #Honors Biology

Principle of Dominance

An organism with at least one dominant allele will exhibit that trait.

The different forms of a gene are called

Alleles

What is segregation ?

Segregation: separation of alleles during gamete formation

Probability of a gamete receiving a G?

50%

Probability of green offspring is

3/4

Probability of yellow offspring is

1/4

Which are homozygous?

1, 4

Which are heterozygous?

2,3

What is the ratio of phenotypes in a dihybrid cross (2 factor)?

9:3:3:1 ratio of phenotypes

Where more than one form of a gene for a single trait exists, some alleles may be ________ and the others ____________.

Dominant and recessive

Some alleles are neither dominant nor recessive. Name this pattern of inheritance.

Incomplete dominance

_______________.The phenotypes for both alleles are clearly expressed.

Codominance

Define diploid

containing both sets of homologous chromosomes; 2N

Haploid

containing only a single set of chromosomes; 1N

What cell is likely to be a gamete ?

Haploid cell

What cell is likely to be a skin cell ?

Diploid cell