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. Initiation - elongation - and termination
Chromosomal Breakage
Transformation
Operon
Polypeptide Synthesis
2. Each strand of DNA that is a template in the synthesis of two new daughter helices
Complementary Base-Pairing
Sex Linked Recessives
Varions
Genetics
3. The noncoding sequence of DNA that serves as the initial binding site for RNA polymerase
Promoter gene
Monocistronic
Polyribosome
Episomes
4. Where protein synthesis occurs
Drosophila Melanogaster
Ribosomes
Backcross
Point Mutation
5. Small circular rings of DNA which contain accessory genes
Backcross
Lyse
Plasmids
Episomes
6. New codon may be a stop codon
Inducible Systems
Nonsense Mutation
Polypeptide Synthesis
Start Codon
7. Pairs of homologues in sexually differentiated species
Autosomes
Mendel's Second Law: Law of Independent Assortment
Sex Linked Recessives
Heterozygous
8. Ribonucleic acid -polynucleotide structurally similar to DNA except that its sugar is ribose -contains uracil instead of thymine -usually single stranded -found in both nucleus and cytoplasm -several types are involved with mRNA - tRNA - and rRNA
Episomes
Dominant Allele
Lyse
RNA
9. Consists of a single circular chromosome located in the nucleoid region of the cell
DNA Replication
Start Codon
Leading Strand
Bacterial Genome
10. The study of how traits are inherited from one generation to the next
Genetics
Recessive Allele
Virulent
Double-Stranded Helix
11. One way of predicting the genotypes expected form a cross -genotypes are determined by looking at the intersections of the grid -indicates all potential progeny genotypes and the relative frequencies of the different genotypes and phenotypes can be e
Punnet Square Diagram
Silent Mutation
Genotype
Termination Codons
12. Occurs when fragments of the bacterial chromosome accidentally become packaged into viral progeny produced during a viral infection
Transfer RNA (tRNA)
Leading Strand
Transduction
Crosses
13. The parents differ in two traits - as long as the genes are on separate chromosomes and assort independently during meiosis
Messenger mRNA
Lyse
Dihybrid Cross
Complementary Base-Pairing
14. Developed the basic principles of genetics through his experiments with the garden pea
Silent Mutation
Mendelian Genetics
Autosomes
Codominance
15. Nucleic acid is replaced by another nucleic acid
Point Mutation
Backcross
tRNA Job
Purines
16. Adenine and guanine
Purines
Polyribosome
Virulent
Ribosomal RNA (rRNA)
17. Formed between the amino acid attached to the tRNA in the A site and the fmet attached to the tRNA in the P site
Genetics
Mutations
RNA
Peptide Bond
18. 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
Episomes
Operator Gene
Varions
19. Short segments from lagging strand
Homozygous
A-site
Okazaki fragments
Lagging Strand
20. Virus that infcts its host bacterium by attaching to it - boring a hole through the bacterial cell wall - and injecting its DNA while its protein coat remains attached to the cell wall and enters the host in either a lytic cycle or a lysogenic cycle
Mendel's Law of Dominance
Sex Linked
Conjugation
Bacteriophage
21. 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
tRNA Job
Transcription
Anticodon
22. Chromosome fragment
Transcription
Plasmid
Recessive Allele
Transduction
23. Synthesized discontinuously in the 5'->3' direction (since DNA polymerase synthesizes only in that direction) as a series Okazaki fragments
Environmental Factors
Translocation
Start Codon
Lagging Strand
24. True-breeding individuals (which - if self-crossed - produce progeny only with the parental phenotype) with different traits - mated them - and statistically analyzed the inheritance of the traits in the progeny
Crosses
Genetics
Genotype
Elongation
25. New codon may code for a different amino acid
Monohybrid Cross
Missense Mutation
Nucleotide
Mendel's Law of Dominance
26. Degeneracy/redundancy of the genetic code since there are 64 different codons and only 20 amino acids
Transduction
Parental (P Generation)
Synonyms
Regulator Gene
27. Sugar-phosphate chains on the outside of the helix and the bases on the inside -C-G - T-A -AKA Watson Crick DNA model
Point Mutation
Double-Stranded Helix
Synonyms
Nucleotide
28. Individuals being crossed
Parental (P Generation)
Testcross
Polypeptide Synthesis
Episomes
29. Bacteriophages that replicate by the lytic cycle - killing their host cells
Lytic Cycle
Recombination
Inducer-Repressor Complex
Virulent
30. Basic unit of heredity
Plasmid
Environmental Factors
Gene
Mutagenic Agents
31. 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
Codons
Pyrimidines
Monocistronic
Translocation
32. Codes for the synthesis of a repressor molecule that binds to the operator and blocks RNA polymerase form transcribing the structural genes
Varions
Regulator Gene
Phenotype
Filial (F generations)
33. DNA language must be translated by mRNA in such a way as to produce the 20 words in the amino acid language
Triplet Code
Lagging Strand
Mutations
Nucleotide
34. Location of genes on DNA
Lytic Cycle
Chromosomes
Mendel's First Law: Law of Segregation (Four Principles)
Mutagenic Agents
35. Each new daughter helix contains an intact strand from the parent helix and a newly synthesized strand
Homozygous
Semiconservative
Gene Mutation
Sex Linked Recessives
36. 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)
Recessive Allele
Binary fission
Ribosomal RNA (rRNA)
Ribosomes
37. Silent allele -usually assigned capital letters
Inducer-Repressor Complex
Recessive Allele
Ribosomes
Inducible Systems
38. Expressed allele -usually assigned capital letters
Dominant Allele
Transcription
Double-Stranded Helix
A-site
39. Genes that are located on the X or Y chromosome -in humans - most are located on the X
Phenotype
Plasmids
Monocistronic
Sex Linked
40. Complementary to one of the mRNA codons
Anticodon
Complementary Base-Pairing
Peptide Bond
Lyse
41. Induce mutations -include cosmic rays - X rays - UV rays - and radioactivity
Aminoacyl-tRNA synthetase
Mutagenic Agents
Complementary Base-Pairing
Parental (P Generation)
42. 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
DNA Replication
Dominant Allele
Autosomes
Genetic Code
43. Brings amino acids to the ribosomes in the correct sequence for polypeptide synthesis -recognizes both the amino acid and the mRNA codon
Monohybrid Cross
Binary fission
Mendel's Second Law: Law of Independent Assortment
tRNA Job
44. Dominant allele is expressed in the phenotype
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
45. May infect other bacteria and introduce new genetic arrangements through recombination with the new host cell's DNA
Varions
DNA
Purines
Frameshift Mutation
46. 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
Triplet Code
Testcross
Ribosomal RNA (rRNA)
A-site
47. Binds to the incoming aminoacyl-tRNA complex (Arriving site)
Silent Mutation
DNA
A-site
Ribosomal RNA (rRNA)
48. 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
Recessive Allele
Semiconservative
Frameshift Mutation
Mutations
49. Nucleic acids are deleted or inserted into the genome sequence (lethal)
Pyrimidines
Bacterial Genome
Frameshift Mutation
Genetics
50. Phage DNA takes control of the bacterium's genetic machinery and manufactures numerous progeny - causing the cell to lyse - releasing new virions - each capable of infecting other bacteria -if initial infection takes place on a bacterial lawn - then
Lytic Cycle
Frameshift Mutation
Pyrimidines
Missense Mutation