chapter 13 observing patterns in inherited traits review

How many chromosomes are present in a human cell nucleus?

• 23 chromosomes or 46 pairs

• 46 pairs or 92 chromosomes

• 46 chromosomes or 23 pairs

• 32 chromosomes or 16 pairs

Mary and her siblings share similar hair color. Which of these cell components are most involved in determining the hair color of each sibling?

• Gene, Chromosome, Nucleus

• Cytoplasm, Chloroplasts,Genes

• Vacuoles, Nucleus, Chromosomes

• Chromosomes, Chloroplasts, Vacuoles

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Characteristics that are passed from parents to their offspring are called 

• behaviors
• learned traits
• inherited traits
• functions

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What is NOT an example of an inherited TRAIT?

• eye color
• tongue rolling
• height
• speaking a language

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A pair of identical twins were separated at birth and raised by different parents. Both were found to have the gene for type II diabetes, but only one developed the disease. What could explain this? (3.2.3)

• mutation and genetic recombination

• independent assortment

• environmental influence

• segregation of alleles

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Name the human mutation in cell receptor protein that affects transport of salt across the cell membrane (3.2.1)

• cystic fibrosis

• hemophilia

• diabetes

• PKU

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A heterozygous individual has a ________ for a trait being studied.

• pair of identical alleles

• pair of non-identical alleles

• haploid condition, in genetic terms

• diploid condition, in genetic terms

An organism’s observable traits constitute its __________.

• phenotype

• genotype

• variation

• pedigree

In genetics, independent assortment means __________.

• genes of a pair end up in different gametes

• gene pairs separate independently of other gene pairs

• genes of nonhomologous chromosomes pair together

• genes never stay together

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The second-generation offspring of a cross between individuals who are homozygous for different alleles of a gene are called the __________.

• F1 generation

• hybrid generation

• F2 generation

• none of the above

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