Upgrade to remove ads
Genetics Final Exam
Terms in this set (40)
What is the normal number of autosomal chromosomes for humans?
A person's karyotype shows 44 autosomes and one X chromosome. What is the best interpretation of this karyotype?
The karyotype is aneuploid, and the person has only 1 allele for each of the genes on the X
Which substance is present in a nucleotide but not in a nucleoside? y>
What are the expected blood types of children from a mother who is AO and a father who is OO?
50% will be type A and 50% will be type O
Which of the following is NOT a single gene trait?
Which of the following statements is NOT true?
Thymine and cytosine are purines, adenine and guanine are pyrimidines.
a homozygous dominant, homozygous recessive, or heterozygous genetic makeup; the actual gene arrangement
refers to how the genetic makeup is expressed in the body
refers to a person with the same alleles on homologous chromosomes
the two alternative forms of a gene that code for the same trait and are at the same location on homologous chromosomes
refers to an individual with different alleles on homologous chromosomes
Cell gets ready for cell division by increasing the amount of materials
DNA replication and synthesis
Proteins important to cell division are produced
DNA in the nucleus pulls apart and is separated into two cell
Unwinds the double helix and initially separates the dsDNA
Connects or links the individual pieces of newly synthesized DNA during replication, forming a single strand.
DNA chain elongation; editing newly synthesized strand; exonuclease action
Creates a "nick" in the supercoils of dsDNA; also repairs the nick
Responsible for initiating DNA synthesis in multiple sites down the single strand being copied
Helps keep the two single strands separated long enough for initiation of DNA replication
What is the expected result of a "missense" point mutation?
Replacement of one amino acid with another in the final gene product
Which of the following statements is NOT true?
A new somatic cell mutation can be inherited by one's children.
Which process occurs outside of the nucleus?
Translation of mRN
The tRNA complementary code for an amino acid codon.
A specific RNA base sequence containing the complementary code to each amino acid's DNA triplet.
The single strand of DNA that contains the complementary base sequence to the gene, not the actual gene itself.
DNA antisense strand
One strand of double-stranded DNA that contains the actual gene coding sequence for the protein to be synthesized.
DNA sense strand
A section of DNA containing multiple repeat sequences that is not composed of genens and does not code for specific proteins.
DNA noncoding region
The exact three nucleotide base sequences that code for an amino acid.
The sectional parts of DNA within a gene-coding region that actually belong in the gene-coding sequence for a specific protein.
The sectional part of DNA within a gene-coding region that do not belong to the gene-coding sequence of the protein being synthesized.
Which factor has the greatest influence on protein tertiary structure?
Bond formation between amino acids that are distant to each other
Jack and Jill go up a hill that has high levels of gamma radiation emission. Jack suffers 10 point mutational events in a noncoding region, and Jill suffers only one frameshift mutation in the insulin gene-coding region of her pancreatic beta cells. What are the possible and probable outcomes of these events for both people?
Jack will have few, in any, effects on protein synthesis but will have more personal DNA markers; Jill will not produce any functional insulin and will have type 1 diabetes mellitus.
The basic chemical structure, containing gene coding regions and noncoding regions, than can be compacted into a chromosome form.
Specialized carrier molecules that can move an amino acid into position to be incorporated correctly into a polypeptide chain during protein synthesis.
A single strand of nitrogenous bases constructed during transcription from a segment of DNA containing the gene for a specific protein that is used by the ribosome during translation as the "recipe" to make that protein.
A mutation an alteration in the base sequence of DNA or RNA whereas a mutagen is any substance or event that can cause a mutation, or change, in the normal DNA sequence.
A single nucleotide polymorphism (SNP) is defined as
a type of point mutation commonly inherited in a gene that alters gene activity in a certain percentage of the population.
Sets with similar terms
Biology Gene Exam
Microbiology: Chapter 11 Genetic Engineering and B…
Genetics, Epigenetics, and Pharmacogenomics
Other sets by this creator
Science Chapter Quiz (PAX REVIEW)
Digestive System Practical
Other Quizlet sets
Regions of North Vocabulary
Origins of Shoulder Muscles
Louis Walls Anniversary Tweets :)
Canterbury Tales, PROLOGUE