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Genes, Alleles, and Dominant Traits Quiz

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Genes, Alleles, and Dominant Traits Quiz

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Questions and Answers

What is the significance of using capital letters to represent alleles?

They indicate homozygous alleles

They indicate dominant alleles (correct)

They indicate sex-linked alleles

They indicate heterozygous alleles

In genetics, what does a homozygous individual mean?

They have one dominant and one recessive allele for a gene

They have the same two alleles for a gene, either both dominant or both recessive (correct)

They have two different alleles for a gene

They have two recessive alleles for a gene

What is the function of a Punnett square in genetics?

To predict the number and variety of genetic combinations (correct)

To determine if an individual is homozygous or heterozygous

To identify sex chromosomes in an individual

To determine the phenotypic outcomes of a genetic cross

What does the genotype of an organism represent?

The genetic composition of an individual for a specific trait Signup and view all the answers

How many pairs of homologous chromosomes are present in human cells?

23 pairs Signup and view all the answers

What determines the sex of an individual?

The chromosomes contributed by the sperm Signup and view all the answers

Which parent always passes on an X chromosome to their offspring?

Mother Signup and view all the answers

Why are males more affected by x-linked disorders compared to females?

Males only have one gene for these traits Signup and view all the answers

How many genes are present on the X chromosome?

2000 Signup and view all the answers

What type of genes are diseases and disorders that are x-linked considered to be?

Recessive genes Signup and view all the answers