Genetics Review

Front

What is a karyotype?

Back

A karyotype is a visual representation of an individual's chromosomes, arranged in pairs and organized by size and shape.

Front

What does it mean if a chromosome pair shows a genetic disorder?

Back

It indicates that there is an abnormality in the number or structure of chromosomes, which can lead to genetic disorders.

Front

What is the phenotype ratio when crossing a black fowl (BB) with a white fowl (bb)?

Back

0 black: 4 grey: 0 white.

Front

What does the letter 'B' represent in genetics?

Back

'B' represents a dominant allele.

Front

What is the definition of homozygous dominant?

Back

An organism is homozygous dominant if it has two identical dominant alleles for a trait (e.g., BB).

Front

What is the genotype of a homozygous recessive organism?

Back

The genotype of a homozygous recessive organism is represented by two identical recessive alleles (e.g., bb).

Front

What is the phenotype of a heterozygous individual (Bb) in Andalusian fowls?

Back

The phenotype of a heterozygous individual (Bb) is grey.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits or characteristics.

Front

What does it mean for an organism to be heterozygous?

Back

An organism is heterozygous if it has two different alleles for a particular trait (e.g., Bb).

Front

What is the significance of sex chromosomes?

Back

Sex chromosomes determine the sex of an individual and can carry genes related to sex-linked traits.