Sex linked traits

Alternative forms of a gene are called

• Alleles
• Homozygous
• DNA
• Genetics

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The physical appearance of an organism based on traits

• Genotype
• Phenotype
• Meiosis
• Genetics

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The allele combinations

• genetics
• mitosis
• genotype
• phenotype

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Having the genes for baldness is an example of

• genotype
• phenotype

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The sex of a child is determined by

• whether the father's sperm contains an x or y chromosome
• whether the mother's egg contains an x or y chromosome
• the age of the parents

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An individual's sex is determined by 

• 1 of 23 chromosomes
• 2 of 46 chromosomes
• 4 of 92 chromosomes

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The visual representation of an individual's chromosomes is a 

• phenotype
• genotype
• karyotype
• stereotype

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When we say that a woman is a carrier for a genetic disease or disorder it means that

• she has 1 gene, but not the disorder
• she has 2 genes for the disorder
• she can pass the gene only to male children
• she can pass the gene only to female children

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Why are men 16 times more likely to be color-blind than women?

• to be color-blind, you must have a Y chromosome
• to be color-blind, all of your X chromosomes must have the gene
• color-blindness is caused by testosterone
• color-blindness is caused by the same gene as baldness

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If a gene is found only on the X chromosome and not the Y chromosome, it is said to be 

• sex-linked trait
• polygenic trait
• codominant trait
• incomplete dominance trait

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