Bio 198 Module 4 Test Questions and Correct Answers

How many nucleotides make up each codon? three Where does transcription take place in bacterial cells? the cytoplasm What is the name for the physical location of a gene on a chromosome? locus What is it called when an individual has two copies of the same allele? homozygous _____________is the expression of the genotype. phenotype How many chromosomes does a human gamete have? 23 Meiosis produces _______________ cells. 4 haploid Where do the chromosomes of a homologous pair come from? chromosome comes from each parent. What actually divides during meiosis? the contents of the nucleus After meiosis 1, there are two cells with half the chromosome of the parent. When genes are located on the same chromosome, we say these genes are linked When a female parent is homozygous for an X-linked trait, how many of her male offspring will express that trait? 100% Diploid individuals can have more than two alleles per gene locus at one time. false In humans there are ABO blood groups, the interaction of the A and B alleles producing the AB blood type is an example codominance Recombinant gametes are those that are not like the parent. Which of the following evolutionary forces could cause changes in allele frequency? natural selection gene flow genetic drift mutation