NUR 529 - Exam 1 Genetics Questions and
CORRECT Answers 100% | A+ Graded
Role of mrna in protein synthesis - CORRECT ANSWER -carries the instructions for protein
synthesis, obtained from the DNA molecule, into the cytoplasm (where protein synthesis takes
place)
Formed from DNA by transcription
Role of trna in protein synthesis - CORRECT ANSWER -reads the instructions and delivers
appropriate amino acids to the ribosome
Role of rrna in protein synthesis - CORRECT ANSWER -translates the instructions and provides
machinery needed for protein synthesis
Gene expression - CORRECT ANSWER -the degree to which a gene or particular group of genes
are actively being transcribed
What initiates transcription? - CORRECT ANSWER -RNA polymerase (enzyme that binds to a
promoter site on DNA)
Mitosis creates ____ cells - CORRECT ANSWER -somatic
Meiosis creates ____ cells - CORRECT ANSWER -germ (results in gametes)
Organization of chromosomes - CORRECT ANSWER -22 pairs of autosomes, 1 pair of sex
chromosomes
, Polygenic inheritance - CORRECT ANSWER -occurs when multiple genes determine the
phenotype of a trait
Multifactorial inheritance - CORRECT ANSWER -an interaction between genes and the
environment that contributes to a phenotype or trait
Genetic imprinting - CORRECT ANSWER -type of transmission in which the parental genomes do
not contribute equally in the development (there is a parent of origin)
Pedigree - CORRECT ANSWER -graphic representation of genetic inheritance used by geneticists
to map genetic traits
Useful for genetic counseling
Genetic mapping - CORRECT ANSWER -The process of determining the location and chemical
sequence of specific genes on specific chromosomes.
What DNA change contributes to aging - CORRECT ANSWER -the shortening or erosion of
telomeres
Locus - CORRECT ANSWER -position of a gene on a chromosome
Polymorphism - CORRECT ANSWER -genes that have more than one normal allele (alternate
forms) at the same locus
Codominance - CORRECT ANSWER -A condition in which both alleles for a gene are fully
expressed
CORRECT Answers 100% | A+ Graded
Role of mrna in protein synthesis - CORRECT ANSWER -carries the instructions for protein
synthesis, obtained from the DNA molecule, into the cytoplasm (where protein synthesis takes
place)
Formed from DNA by transcription
Role of trna in protein synthesis - CORRECT ANSWER -reads the instructions and delivers
appropriate amino acids to the ribosome
Role of rrna in protein synthesis - CORRECT ANSWER -translates the instructions and provides
machinery needed for protein synthesis
Gene expression - CORRECT ANSWER -the degree to which a gene or particular group of genes
are actively being transcribed
What initiates transcription? - CORRECT ANSWER -RNA polymerase (enzyme that binds to a
promoter site on DNA)
Mitosis creates ____ cells - CORRECT ANSWER -somatic
Meiosis creates ____ cells - CORRECT ANSWER -germ (results in gametes)
Organization of chromosomes - CORRECT ANSWER -22 pairs of autosomes, 1 pair of sex
chromosomes
, Polygenic inheritance - CORRECT ANSWER -occurs when multiple genes determine the
phenotype of a trait
Multifactorial inheritance - CORRECT ANSWER -an interaction between genes and the
environment that contributes to a phenotype or trait
Genetic imprinting - CORRECT ANSWER -type of transmission in which the parental genomes do
not contribute equally in the development (there is a parent of origin)
Pedigree - CORRECT ANSWER -graphic representation of genetic inheritance used by geneticists
to map genetic traits
Useful for genetic counseling
Genetic mapping - CORRECT ANSWER -The process of determining the location and chemical
sequence of specific genes on specific chromosomes.
What DNA change contributes to aging - CORRECT ANSWER -the shortening or erosion of
telomeres
Locus - CORRECT ANSWER -position of a gene on a chromosome
Polymorphism - CORRECT ANSWER -genes that have more than one normal allele (alternate
forms) at the same locus
Codominance - CORRECT ANSWER -A condition in which both alleles for a gene are fully
expressed
