Biotechnology Quiz | MCQ | Biotech Test Quiz 02 #mcq.CETJOB - Multiple choice questions and Objectives
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Biotechnology Quiz | MCQ | Biotech Test Quiz #mcq.CETJOB

1 >>For the same gene, it is possible to patent ?
  • (A) expressed sequence tags
  • (B) cDNA
  • (C) SNPs
  • (D) all of the above
2 >>Which gene transfer technique involves the use of a fatty bubble to carry a gene into a somatic cell? ?
  • (A) electroporation
  • (B) liposome transfer
  • (C) microinjection
  • (D) particle bombardment
3 >>"Naked" DNA ?
  • (A) is free of nucleic acids.
  • (B) is free of the cell.
  • (C) is free of protein.
  • (D) contains just the sugar-phosphate backbone.
4 >>Which of the following gene-targeted mice have shown that a gene product once thought important is not vital to survival? ?
  • (A) neurofibromatosis
  • (B) X collagen
  • (C) SCID
  • (D) sickle-cell

5 >>The first drug produced using recombinant DNA technology was ?
  • (A) streptokinase.
  • (B) tPA.
  • (C) insulin.
  • (D) penicillin.
6 >>____ are the units of heredity. ?
  • (A) Cells
  • (B) Genes
  • (C) Chromosomes
  • (D) Alleles
7 >>Variants of genes are called ____ and arise by a process called ____. ?
  • (A) alleles, mutation
  • (B) mutants, mutation
  • (C) recessives, differentiation
  • (D) chromosomes, mitosis
8 >>A variant in sequence that is present in at least 1% of a population is called a (an) ?
  • (A) gene.
  • (B) allele.
  • (C) autosome.
  • (D) polymorphism.
9 >>Which of the following is not a potential use for results of DNA microarray testing? ?
  • (A) determining the probability that your offspring will carry the gene for a particular trait
  • (B) determining which genes are active in cells affected with cancer
  • (C) determining whether a particular drug will be toxic for you
  • (D) All of the above are potential uses of DNA microarray testing.
10 >>Which of the following statements is true regarding genomes? ?
  • (A) Humans and chimpanzees share about 50% of their DNA sequences.
  • (B) Two members of different races may have more genes in common than two members of the same race.
  • (C) The more different DNA sequences of two species are to one another, the more recently two species diverged from a single ancestor.
  • (D) All of the above are true regarding genomes.
11 >>The alleles in a population constitute the ?
  • (A) chromosome complement.
  • (B) karyotype.
  • (C) gene pool.
  • (D) allele group.
12 >>A gene may have many alleles, but each individual has only two alleles because ?
  • (A) having more than two alleles is lethal.
  • (B) having more than two alleles unbalances the chromosomes.
  • (C) a person has two parents who each contribute one allele.
  • (D) a backup set of alleles is necessary in case something goes wrong.

13 >>The ____ refers to the allele combinations for particular genes while ____ is the expression of that allele combination. ?
  • (A) phenotype, karyotype
  • (B) karyotype, phenotype
  • (C) genotype, autosome
  • (D) genotype, phenotype
14 >>Linda and Ben request prenatal genetic testing to determine if their unborn child has Down syndrome. Cells are collected from the fetus and the chromosomes are examined in a ____ analysis ?
  • (A) pedigree
  • (B) karyotype
  • (C) multifactorial
  • (D) Mendelian
15 >>Which of the following genetic disorders is not thought to be Mendelian? ?
  • (A) cystic fibrosis
  • (B) Tay-Sachs disease
  • (C) hemophilia
  • (D) hypertension
16 >>Julie is at risk for developing a genetic disorder. Her absolute risk of developing the disease over her lifetime is 4 in 10. The risk to the general population is 16 in 100. Calculate Julie's relative risk and advise her accordingly. ?
  • (A) her relative risk is less than 1: her chance if developing the illness is less than that of the general population
  • (B) her relative risk indicates a greater-than-2-fold risk compared to an individual in the general population
  • (C) her relative risk indicates that she is as likely to develop the illness as an individual from the general population
  • (D) no inferences can be made given the information in question 12
17 >>How do genetic diseases differ from other diseases? ?
  • (A) recurrence risk is predictabl
  • (B) presymptomatic testing is possible
  • (C) different populations have different characteristic frequencies
  • (D) all of the above
18 >>A transgenic organism has ?
  • (A) genes, other organisms do not.
  • (B) genes from different species.
  • (C) a dominant phenotype.
  • (D) had its genome sequenced.
19 >>The technique of ____ attempts to correct certain genetic disorders. ?
  • (A) karyotype analysis
  • (B) risk assessment
  • (C) genomics
  • (D) gene therapy

20 >>A 54-year-old man and his 26-year-old son are each accused of committing a rape. Why would DNA fingerprinting be difficult in evaluating this case? ?
  • (A) DNA typing requires samples from relatives to compare to the crime scene sample
  • (B) father and son are likely to have the same alleles for sequences examined
  • (C) we cannot be certain that father and son are biologically related so comparisons are not possible
  • (D) none of the above