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Bio Chapter 10
Viruses
| Question | Answer |
|---|---|
| A gene is a? | stretch of DNA nucleotides that encodes a protein. |
| Long strands of DNA and their associated proteins are called? | Chromosomes |
| Homologous chromosomes are? | chromosomes that look alike and have the same sequence of genes but may not carry the same alleles. |
| When they self-fertilize, true-breeding plants always produce offspring with a form of a trait that ___. | resembles the parent form of the trait |
| An individual's allele combination for a particular gene is called the | Genotype |
| Two chromosomes that look alike and have the same sequence of genes in the same positions are a(n) ______ pair. | Homologous |
| Select all of the advantages of studying heredity with the pea plant Pisum sativum over another species. | -develops quickly -can self-fertilize -can cross-fertilize -produces many offspring. -many traits with two distinguishable forms |
| A ___ organism always produces offspring that are identical to the parent when self-fertilized. | True breeding |
| The law of independent assortment deduced by Mendel states that | the assortment of alleles for one gene does not influence how the alleles for a second gene assort during gamete formation. |
| If a couple that are both heterozygous carriers of the cystic fibrosis allele have children, the chance that both their first and their second child are carriers is 0.5 x 0.5, or 25%, as determined by the? | Product rule |
| The number of genes in a cell ________ the number of chromosomes. | exceeds |
| The _______ rule states that the chance of two independent events occurring is equal to the product of the individual chances that each event will occur. | Product |
| Genes that are located on the same chromosome and inherited together are called _______ genes. | Linked |
| What describes an inheritance pattern that shows incomplete dominance? | Heterozygotes have a phenotype that is intermediate between those of the two homozygotes. |
| Select all of the following that are true about linked genes. | -do not assort independently -inherited together -located on the same chromosome |
| To construct linkage maps, scientists estimate the distance between genes on the same chromosome based on the ______, as indicated by the percentage of recombinant offspring. | Crossover Frequency |
| Human eye color is controlled by multiple enzymes encoded by multiple genes; therefore, human eye color is a ______ trait. | Polygenic |
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Sydboyer15
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