Modern Genetics Review

the mutatons of genes are sometimes influenced by

• hybrid allelles
• stem cells
• cytoplasm
• the environment

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Sickle cell anemia affects the body' s ability to

• make pathogens
• make white blood cells
• deliver oxygen
• fight disease

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If organisms are very similar, there is an increased probability that they will inherit

• sickle cell anemia
• a genetic disorder
• lymes disease
• each others traits

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The passing of genetic traits from parent to offspring is called

• cross-pollination
• cross-breeding
• heredity
• genetics

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The study of Heredity

• science
• genetics
• english
• gene

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One of the threadlike structures in the nucleus of a cell that contain directions for the cell's activities

• variation
• pedigree
• DNA
• chromosome

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What is a gene?

• DNA compacted and organized into a unit

• A segment of DNA that codes for a specific protein, in turn a specific trait

• One of the threadlike structures in the nucleus of a cell that contain directions for the cell's activities

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Different forms of a single gene are called a(n) _________.

• gene
• chromosome
• allele
• genotype

If a gene has dissimilar pairs of alelles for any hereditary characteristic it is called

• homozygous
• heterozygous
• codominant
• dominant

Which of the following best describes a GENOTYPE?

• The allele/genetic makeup of an organism.
• The physical expression of a trait.