Genetics (basics)

Front

How many alleles does an offspring receive from each parent for a specific trait?

Back

One allele from each parent.

Front

What does genotype refer to?

Back

The possible combination of alleles in a gene.

Front

What is the result of crossing a homozygous dominant dog (BB) with a heterozygous dog (Bb) in terms of genotype percentages?

Back

50% BB and 50% Bb.

Front

What are the genotype possibilities when crossing two heterozygous green pea plants (Gg)?

Back

GG 25%, Gg 50%, gg 25%.

Front

What tool is used to identify possible offspring genotypes?

Back

Punnett square.

Front

What is the definition of a dominant allele?

Back

An allele that expresses its trait even in the presence of a recessive allele.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present.

Front

Define phenotype.

Back

The physical expression or characteristics of an organism's genotype.

Front

What is the purpose of a Punnett square?

Back

To predict the genotypes of offspring from a genetic cross.

Front

What does homozygous mean?

Back

Having two identical alleles for a specific gene.