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of 127 available terms
(4 exact duplicates found)

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5 Written questions

5 Matching questions

  1. sex chromosome
  2. zygote
  3. deoxyribonucleic acid:
  4. uniparental inheritance
  5. dioecious species
  1. a A cell formed by the fusion of an egg and a sperm; the unique diploid cell that will divide mitotically to create a differentiated diploid organism.
  2. b Inheritance pattern in which the progeny have the genotype and phenotype of one parent only, for example, inheritance of mitochrondrial genomes.
  3. c A chain of linked nucleotides (having deoxyribose as their sugars). Two such chains in double helical form are the fundamental substance of which genes are composed.
  4. d A chromosome whose presence or absence is correlated with the sex of the bearer; a chromosome that plays a role in sex determination.
  5. e A plant species in which male and female organs are on separate plants.

5 Multiple choice questions

  1. An RNA molecule transcribed from the DNA of a gene; a protein is translated from this RNA molecule by the action of ribosomes.
  2. An individual organism that is homozygous.
  3. The phenotype shown by a heterozygote.
  4. A section of DNA that has been inserted into a vector molecule, such as a plasmid or a phage, and then replicated to produce many copies.
  5. An in vitro method for amplifying a specific DNA segment that uses two primers that hybridize to opposite ends of the segment in opposite polarity and, over successive cycles, prime exponential replication of that segment only.

5 True/False questions

  1. cytoplasmic segregationThe ribosome- and tRNA-mediated production of a polypeptide whose amino acid sequence is derived from the codon sequence of an mRNA molecule.


  2. forward geneticsAn experimental procedure that begins with a cloned segment of DNA or a protein sequence and uses it (through directed mutagenesis) to introduce programmed mutations back into the genome to investigate function.


  3. law of equal segregationThe two strains or individual organisms that constitute the start of a genetic breeding experiment; their progeny constitute the F1 generation.


  4. genetics(1) The study of genes. (2) The study of inheritance.


  5. traitMore or less synonymous with phenotype.