Answer these 400+ Genetics MCQs and assess your grip on the subject of Genetics. Scroll below and get started!
A. Histone 3.3
B. Nucleoplasmin/N1
C. Histone H1
D. CAF1/Asf1
A. Alternative splicing ; pre-mRNA
B. RNA polymerase; ribosomes
C. Ribosomes ; RNA polymerase
D. Pre-mRNA ;RNA polymerase
A. The genes are not linked or are more than 50 map units apart.
B. Have the same order of genes but different intergenic distances.
C. Recessive, and that these genes are located 4 map units apart.
D. None of these
A. Silent; missense
B. Nonsense; silent
C. Frame-shift; missense
D. Silent; nonsense
E. Nonsense; frame-shift
A. Monohybrid
B. Dihybrid
C. Punnett
D. Test
E. Homozygous
A. True
B. OH; 2'; 3'
C. DNA sequencing
D. Filter-bound DNA
A. An allele that stops or hides the expression of the other allele
B. The person has two identical alleles for the gene responsible for the trait
C. Carriers are not eliminated by the disease before passing the defective alleles on to their offspring
D. Incomplete dominance
E. Phenotype
A. The same thing as a chromosome
B. The information for making a polypeptide
C. Made of RNA
D. Made by a ribosome
A. DNA ... RNA ... protein
B. U ... A....D
C. DNA → RNA → protein
D. Substitution of one nucleotide
A. 0.81
B. 0.88
C. 0.89
D. 0.87
A. 46; 23
B. 23; 46
C. 46; 46
D. 23; 23
A. Have experienced only one hybrid generation
B. Differ in only one trait
C. Are identical
D. Are self-pollinated
A. Both parents are heterozygous for both genes
B. Calculate the probability of a child having either sickle-cell anemia or cystic fibrosis if parents are each heterozygous for both.
C. In rabbits and many other mammals, one genotype (ee) prevents any fur color from developing.
D. Skin pigmentation in humans
A. Homozygous recessive individual
B. Homozygous for two different genes
C. The gene for hemophilia is sex-linked
D. All of the dominant phenotype
A. Plasmids contain genes that are NOT essential for cellular growth and replication.
B. Catalyze the formation of phosphodiester bonds between ribonucleotides.
C. Additional genetic traits that are needed only under certain circumstances
D. Allows coordinated expression of multiple related genes in prokaryotes.
A. An RNA molecule that functions as an enzyme
B. The location in a cell where ribosomal RNAs (rRNAs) are made
C. An example of rearrangement of exons caused by alternative RNA splicing
D. An exception to the one gene-one enzyme hypothesis
E. A cutting enzyme involved in DNA damage repair
A. A copy of the insertion sequence becomes integrated at a new location
B. Two haploid gametes fuse to form a diploid cell
C. The smaller of the two reciprocal products of translocated chromosomes is lost
D. They may be sterile and unable to produce offspring.
A. 30
B. 50
C. 150
D. 450
E. 750
A. Fertilization
B. DNA polymerase
C. Incomplete dominance
D. MRNA, tRNA, rRNA
E. A dihybrid cross
A. A; G; T; C
B. A; T; G; C
C. A; C; G; T
D. C; T; G; A
E. G; U; A; C
A. DNA fingerprinting
B. Maxam and Gilbert method
C. Chain termination method
D. Mullis chain-terminating sequencing
A. Mutations that are recessive
B. Diploid cells
C. Two or more mutations that affect a single phenotype
D. An auxotrophic organism
A. Telomerase enzyme
B. Links to the aging process
C. Being found in eukaryotes and prokaryotes
D. Short tandem repeats located at the ends of telomeres
A. Duplication
B. Natural selection
C. Balancing selection
D. Mutation
E. Human fingerprints
A. 180
B. 270
C. 540
D. 1,080
E. 1,620
A. 3' to 5' exonuclease activity
B. 5' to 3' exonuclease activity
C. Endonuclease activity
D. 5' to 3' DNA synthesis activity
A. Size
B. Pressure
C. Space
D. Mass
A. Turned off whenever tryptophan is added to the growth medium.
B. Starts when the pathway's substrate is present.
C. Their normal products participate in repair of DNA damage.
D. The occurrence of mRNAs for the production of tissue-specific proteins
A. Prevent mRNA synthesis
B. Code for amino acids
C. Alterations in the DNA base sequence
D. Deoxyadenosine
A. Recombines linked; alleles
B. Combines unlinked; alleles
C. Combines linked; genes
D. Recombines unlinked; genes
A. Decreases
B. Not assort independently.
C. Increases
D. Coupling
A. One extreme
B. Both extremes
C. In the middle
D. None of the above
A. Remains intact
B. Makes rna
C. Is copied
D. Directs protein synthesis
A. Carry genes controlling the same inherited characteristics
B. Homologous chromosomes line up in the middle of the cell
C. The events of prophase are reversed
D. Chromosomes line up in the middle of the cell
A. Manufactured proteins to be short and defective
B. During transcription
C. A silent or neutral mutation
D. Cleavage of a polypeptide into two or more chains
E. MRNA is synthesized on only one of the chains
A. DnaA, opens the complex
B. Exons, introns
C. Nucleus, introns
D. Polypeptides, mRNA sequences and cellular machinery
A. Increases the amount of DNA by 2n, where n = primer length
B. Doubles the amount of DNA
C. Increases the amount of DNA by 2n, where n = reaction temperature
D. Cuts a new set of DNA fragments
A. Multiple alleles
B. Codominance
C. Trihybrid crosses
D. Polygenic traits
A. Dizygotic
B. Embryonic
C. Monozygotic
D. Homozygous
A. Genetic drift
B. Sexual recombination
C. Mutation
D. Migration
E. Natural selection
A. Enzymes
B. Lipids
C. Ribosomes
D. Glucose
A. An important microevolutionary mechanism in large populations
B. The mechanism by which new alleles originate
C. More likely to have an impact on small populations
D. Adaptive
A. Chance
B. Environmental variation
C. Natural selection
D. A large gene pool
E. Differential reproductive success.
A. A gene pool decreases because a smaller group establishes a new population
B. Chance events cause allele frequencies to fluctuate unpredictably
C. Sudden change in environment drastically reduces the gene pool
D. A population has heritable traits better suited to the environment
A. Is created by the direct action of natural selection
B. Must be present in a population before natural selection can act upon the population
C. Tends to be reduced by when diploid organisms produce gametes
D. Arises in response to changes in the environment
A. Transformation
B. Transduction
C. Meiosis
D. Conjugation
E. Mutation
A. Surrounds the nucleic acid of a virus
B. Integrate their DNA into the host's chromosome
C. Considered to be alive
D. Moves from the nucleus to the cytoplasm following RNA processing
A. In the sequence of bases
B. Polygenic inheritance.
C. Huntington disease
D. Could be either homozygous or heterozygous for the allele
E. Hydrogen bonds between bases
A. Incomplete dominance
B. Codominance
C. Simple Mendelian inheritance
D. Sex-limited inheritance
E. Sex-influenced inheritance
A. 40%
B. 50%
C. 30%
D. 20%