SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
PCAT Biology Genetics
Start Test
Study First
Subjects
:
pcat
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Begins at a unique origin of and proceeds in both directions simultaneously
Bacterial Replication
Codominance
Lysogenic Cycle
Genotype
2. TRNA binding site for ribosomes to attach to the growing polypeptide chain (peace out site)
Testcross
Codominance
Transcription
P-site
3. Small RNA found in the ctyoplasm that aids in the translation of mRNA's nucleotide code into a sequence of amino acids -brings amino acids to the ribosomes during protein synthesis
Elongation
Homozygous
Codons
Transfer RNA (tRNA)
4. Complex that can't bind to the operator - thus permitting transcription
Synonyms
Inducer-Repressor Complex
Translation
Elongation
5. Pairs of homologues in sexually differentiated species
Parental (P Generation)
Autosomes
Translation
Recombination
6. Progeny phenotypes are apparently blends of the parental phenotypes
Incomplete Dominance
Promoter gene
Semiconservative
Lysogenic Cycle
7. The process by which a foreign plasmid is incorporated into the bacterial chromosome via recombination - creating new inheritable genetic combinations
Backcross
Heterozygous
Transformation
Sex Linked Recessives
8. Base sequence of mRNA is translated as a series of triplets
Codons
Elongation
Homozygous
Parental (P Generation)
9. Genes on the same chromosome will stay together unless crossing over occurs -crossing over exchanges information between chromosomes and may break the linkage of certain patterns
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
10. Initiation - elongation - and termination
Varions
Genotype
Ribosomes
Polypeptide Synthesis
11. Nucleic acid is replaced by another nucleic acid
Varions
Point Mutation
Termination Codons
Leading Strand
12. On amino acid which has an active site that binds to both the amino acid and its corresponding tRNA - ctalyzing their attachment to form an aminoacyl-tRNA complex
Elongation
Parental (P Generation)
Drosophila Melanogaster
Aminoacyl-tRNA synthetase
13. Fruit fly -produces often (short life cycle) -reproduces in large numbers (large sample size) -chromosomes (especially in the salivary gland) are large and easily recognizable in size and shape -its chromosomes are few (4 pairs - 2n=8) -Mutations occ
Filial (F generations)
Drosophila Melanogaster
Chromosomes
Double-Stranded Helix
14. Occurs when linked genes are separated
Environmental Factors
Recombination
Semiconservative
Translation
15. Self replication ensures that its coded sequence will be passed on to successive generations
Plasmid
Nucleotide
Mendelian Genetics
Heredity
16. Regulation of gene expression and enables prokaryotes to control their metabolism
Recessive Allele
Transcription
Ribosomes
Operon
17. Diagnostic tool to determine the genotype of an organism -Only with a recessive phenotype can genotype be predicted with 100% accuracy -if dominant phenotype is expressed - the genotype can be either homozygous dominant or heterozygous -used to deter
Regulator Gene
Testcross
Lytic Cycle
Mendel's First Law: Law of Segregation (Four Principles)
18. DNA language must be translated by mRNA in such a way as to produce the 20 words in the amino acid language
Lytic Cycle
Triplet Code
Ribosomes
Mendelian Genetics
19. May infect other bacteria and introduce new genetic arrangements through recombination with the new host cell's DNA
Bacterial Genome
Operon
Anticodon
Varions
20. Each new daughter helix contains an intact strand from the parent helix and a newly synthesized strand
Okazaki fragments
Promoter gene
Testcross
Semiconservative
21. Carries the complement of a DNA sequence and transports it from the nucleus to the ribosomes -assembled from ribonucleotides that are complementary to the 'sense' strand of the DNA -monocistronic
Messenger mRNA
Transformation
Repressible Systems
Transcription
22. Reproduction of bacterial cells and proliferate very rapidly under favorable conditions -asexual prcoess -3 kinds (transformation - conjugation and transduction)
Transcription
Heredity
Lysogenic Cycle
Binary fission
23. Where protein synthesis occurs
Ribosomes
Mutable
Complementary Base-Pairing
Mutagenic Agents
24. Structure formed when many ribosomes simultaneously translate a single mRNA molecule
Mutable
Polyribosome
Missense Mutation
Backcross
25. The parents differ in two traits - as long as the genes are on separate chromosomes and assort independently during meiosis
Repressible Systems
Monocistronic
Genotype
Dihybrid Cross
26. Sugar-phosphate chains on the outside of the helix and the bases on the inside -C-G - T-A -AKA Watson Crick DNA model
Heredity
Drosophila Melanogaster
Double-Stranded Helix
Chromosomes
27. Changes in the genetic information of a cell coded in the DNA -if occured in the somatic cells - it can lead to tumors in an individual
Repressible Systems
Inducer-Repressor Complex
Nonsense Mutation
Mutations
28. Organisms that carry two different alleles
Mendelian Genetics
Mendel's Second Law: Law of Independent Assortment
Heterozygous
Plasmid
29. (UAA - UAG - or UGA) terminates polypeptide synthesis
Start Codon
Peptide Bond
Termination Codons
Mendelian Genetics
30. Language of DNA consists of four letters: A -T -C -G -language of proteins consists of 20 'words': 20 amino acids -universal for almost all organism
Autosomes
Genetic Code
Mutable
Regulator Gene
31. Either the failure of homologous chromosomes to separate properly during meiosis I or the failure of sister chromatids to separate properly during meiosis II -zygote might either have 3 copies of that chromosome (trisomy) or just a single copy (monos
DNA
tRNA Job
Genotype
Nondisjunction
32. Nitrogen bases are added - deleted - or substituted - thus crating different genes; inappropriate amino acids may be inserted into polypeptide chains - and a mutated protein may be produced
Gene Mutation
Ribosomes
Lyse
Lytic Cycle
33. Small circular rings of DNA which contain accessory genes
Plasmids
Start Codon
Punnet Square Diagram
Gene Mutation
34. Nucleic acids are deleted or inserted into the genome sequence (lethal)
tRNA Job
Nonsense Mutation
Frameshift Mutation
Genetic Code
35. Basic unit of DNA - which is composed of deoxyribose (a sugar) bonded to both a phosphate group and a nitrogenous base -bases: purines and pyrimidines
Mutagenic Agents
Nucleotide
Monohybrid Cross
Termination Codons
36. Complementary to one of the mRNA codons
Frameshift Mutation
Mutations
Genetic Code
Anticodon
37. The process whereby information coded in the base sequence of DNA is transcribed into a strand of mRNA that leaves the nucleus through nuclear pores. the remaining events of protein synthesis occur in the cytoplasm
Lagging Strand
Heredity
Pyrimidines
Transcription
38. Genetic makeup of an individual
Crosses
Bacteriophage
Genotype
Recombination
39. Consists of structural genes
Operon
Dihybrid Cross
Operator Gene
Genotype
40. New codon may be a stop codon
Nonsense Mutation
Dominant Allele
Transformation
Nucleotide
41. Process whereby mRNA codons are translated intoa sequence of amino acids -occurs in cytoplasm and involves tRNA - ribosomes - mRNA - amino acids - enzymes - and other proteins
Translation
Mendel's Law of Dominance
Transcription
Translocation
42. System where the repressor binds to the operator - forming a barrier that prevents RNA polymerase from transcribing the structural genes
Missense Mutation
Dihybrid Cross
Inducible Systems
Termination Codons
43. The ribosome advances three nucleotides along the mRNA in the 5' to 3' direction and the uncharged tRNA from the P site is expelled - and the peptidyl-tRNA from the A site moves into the P site and completes the cycle
Synonyms
Double-Stranded Helix
Nondisjunction
Translocation
44. The sequence of nontranscribable DNA that is the repressor binding site
Genetic Code
Operator Gene
Mendel's Law of Dominance
Mutable
45. 1) Genes exist in alternative forms. A gene controls a specific trait in an organism. 2) An organism has two alleles for each inherited trait - one inherited from each parent 3) The two alleles segregate during meiosis - resulting in gametes that car
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
46. Occurs while multiple alleles exist for a given gene and more than one of them is dominant -expression of both dominant alleles are simultaneous -ex: ABO blood group
Codominance
Repressible Systems
Genotype
A-site
47. Double stranded DNA molecule unwinds and separates into two single strands
Environmental Factors
Purines
tRNA Job
DNA Replication
48. Composed of two subunits (consisting of proteins and rRNA) - one large and one small - that bind together only during protein synthesis -have 3 binding sites (for mRNA and two tRNA)
Ribosomes
Alleles
Bacteriophage
Virulent
49. Bacteriophages that replicate by the lytic cycle - killing their host cells
Codominance
Virulent
Pyrimidines
Homozygous
50. Structural component of ribsomes and is the most abundant of all RNA types -synthesized in the nucleolus
Ribosomes
Dominant Allele
Messenger mRNA
Ribosomal RNA (rRNA)