Animal Genetics and Breeding Quiz 29 Quiz InstructionsThis quiz consists of 32 multiple-choice questions.You will be awarded 5 marks for each correct answer. Question 1: Zinc finger proteins and helix-turn-helix proteins are:involved in the control of translationtypes of DNA-binding proteinscomponents of ribosomespart of the hemoglobin in blood cells Question 2: Transcriptional activator proteins:transcribe a messenger off a DNA templatebind to ribosomes to activate the production of specific proteinsare essential to function of transfer RNAs during translationbind regions near a eukaryotic gene and allow an RNA polymerase to transcribe a gene Question 3: Differential distribution of substances in the egg most typically results in:differences in gene expression which may establish a pattern in the embryo as the cells divideamplification of specific genes during developmentdevelopment of polyploid tissuesdominance of genes derived from the father Question 6: A homeotic mutation is one which:is present in only one form in an individualsubstitutes one body part for another in developmentresults in development of a tumoris wild type at one temperature and abnormal at another Question 8: preventing binding of the repressor to the operator, should result in:constitutive expression of the lac operon geneslack of expression or reduced expression of the lac operon genes under all circumstancesexpression of the genes only when lactose is present expression of the genes only when lactose is absent Question 11: RFLP analysis is a technique thatuses hybridization to detect specific DNA restriction fragments in genomic DNAis used to determine whether a gene is transcribed in specific cellsmeasures the transfer frequency of genes during conjugationis used to detect genetic variation at the protein level Question 12: Plasmid vectors for cloningcan generally accommodate larger inserts than phage vectors cangrow within bacteria, and are present in bacterial colonies on an agar platecan accommodate inserts of over 100 kilobasesinclude centromeres to allow propagation in yeast Question 13: Simple tandem repeat polymorphisms in humans are most useful for:reconstructing the relationships of humans and chimps. solving criminal and paternity casesestimating relationships of humans and Neanderthalstransferring disease resistance factors into bone marrow cells Question 16: Positional cloning refers to:using a selection procedure to clone a cDNAisolating a gene by PCR using primers from another speciescloning a portion of a gene using PCRmapping a gene to a chromosomal region and then identifying and cloning a genomic copy of the gene from the region Question 17: Large quantities of useful products can be produced through genetic engineering involving:bacteria containing recombinant plasmidstransgenic plantsyeast carrying foreign genesall of the above Question 20: size of 5,000 bp into?about 2 about 4about 20about 50 Question 26: Assuming Hardy-Weinberg equilibrium, the genoypte frequency of heterozygotes, if the frequency of the two alleles at the gene being studied are 0.6 and 0.4, will be:0.80.640.480.32 Question 28: marker, each of which has a frequency of 0.2, will be:0.40.320.160.08
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