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. Binds to the incoming aminoacyl-tRNA complex (Arriving site)
Elongation
Termination Codons
Bacterial Replication
A-site
2. Where protein synthesis occurs
Incomplete Dominance
Heredity
Dominant Allele
Ribosomes
3. Can often affect the expression of a gene -interaction betwen the enironment and the genotype produces the phenotype
Monohybrid Cross
Double-Stranded Helix
Environmental Factors
Chromosomes
4. 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
Point Mutation
Conjugation
Translation
5. 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
Genetics
Termination Codons
RNA
Homozygous
6. One mRNA strand codes for one polypeptide
Conjugation
Incomplete Dominance
Monocistronic
Monohybrid Cross
7. Degeneracy/redundancy of the genetic code since there are 64 different codons and only 20 amino acids
Transcription
Lyse
Synonyms
Point Mutation
8. Regulation of gene expression and enables prokaryotes to control their metabolism
Transcription
Plasmids
DNA
Chromosomal Breakage
9. Each new daughter helix contains an intact strand from the parent helix and a newly synthesized strand
Aminoacyl-tRNA synthetase
Codons
Filial (F generations)
Semiconservative
10. The noncoding sequence of DNA that serves as the initial binding site for RNA polymerase
Crosses
Chromosomal Breakage
Promoter gene
Nucleotide
11. Can be altered under certain conditions - altering the corresponding characteristics in the organism
Drosophila Melanogaster
Bacterial Genome
Mendel's Second Law: Law of Independent Assortment
Mutable
12. Double stranded DNA molecule unwinds and separates into two single strands
DNA Replication
Episomes
Alleles
Mendel's First Law: Law of Segregation (Four Principles)
13. New codon may be a stop codon
Transcription
Nonsense Mutation
Polyribosome
Repressible Systems
14. 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
Transfer RNA (tRNA)
Transduction
Promoter gene
Plasmid
15. Nucleic acids are deleted or inserted into the genome sequence (lethal)
Pyrimidines
Promoter gene
Frameshift Mutation
Monocistronic
16. Include incomplete dominance - and codominance
A-site
Non-Mendelian Inheritance Patterns
Operon
Recessive Allele
17. 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
Drosophila Melanogaster
Genotype
Mendel's Law of Dominance
Bacteriophage
18. Small circular rings of DNA which contain accessory genes
Plasmids
tRNA Job
Dihybrid Cross
Autosomes
19. Reproduction of bacterial cells and proliferate very rapidly under favorable conditions -asexual prcoess -3 kinds (transformation - conjugation and transduction)
Mendel's Law of Dominance
Binary fission
Monohybrid Cross
Regulator Gene
20. Organisms that carry two different alleles
Inducer-Repressor Complex
Varions
Heterozygous
Non-Mendelian Inheritance Patterns
21. May infect other bacteria and introduce new genetic arrangements through recombination with the new host cell's DNA
Synonyms
Heterozygous
Messenger mRNA
Varions
22. Adenine and guanine
Purines
Translation
Mendel's Second Law: Law of Independent Assortment
Gene
23. 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
24. Consists of structural genes
Dihybrid Cross
Dominant Allele
Operon
Backcross
25. Expressed allele -usually assigned capital letters
Dominant Allele
Dihybrid Cross
Punnet Square Diagram
Lyse
26. Synthesized discontinuously in the 5'->3' direction (since DNA polymerase synthesizes only in that direction) as a series Okazaki fragments
Transcription
Incomplete Dominance
Genetic Code
Lagging Strand
27. Occurs when fragments of the bacterial chromosome accidentally become packaged into viral progeny produced during a viral infection
Antibody resistance
Phenotype
Transduction
P-site
28. Cytosine and thymine
Pyrimidines
Translation
Operator Gene
Transduction
29. (UAA - UAG - or UGA) terminates polypeptide synthesis
Dominant Allele
Pyrimidines
Termination Codons
Chromosomes
30. 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
Genetics
Genetic Code
Binary fission
Crosses
31. The process by which a foreign plasmid is incorporated into the bacterial chromosome via recombination - creating new inheritable genetic combinations
Transformation
Okazaki fragments
A-site
Non-Mendelian Inheritance Patterns
32. 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
Lyse
Genetic Code
Sex Linked
Nucleotide
33. Daughter strand that is continuously synthesized by DNA polymerase in the 5'->3' direction
Dominant Allele
Leading Strand
Codominance
Missense Mutation
34. Consists of a single circular chromosome located in the nucleoid region of the cell
Monohybrid Cross
Dihybrid Cross
Inducer-Repressor Complex
Bacterial Genome
35. (AUG) ribosome scans the mRNA until it bonds to this (methionine) and UAC on anticodon of tRNA
Punnet Square Diagram
Incomplete Dominance
Regulator Gene
Start Codon
36. Short segments from lagging strand
Parental (P Generation)
P-site
Okazaki fragments
Mutations
37. 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)
Polypeptide Synthesis
Ribosomes
Genetics
Complementary Base-Pairing
38. Structural component of ribsomes and is the most abundant of all RNA types -synthesized in the nucleolus
Ribosomal RNA (rRNA)
Codominance
Inducible Systems
Homozygous
39. Occurs when linked genes are separated
Gene
Plasmid
Ribosomes
Recombination
40. System where the repressor is inactive until it combines with the corepressor
Repressible Systems
Purines
Plasmid
Chromosomes
41. Individuals being crossed
Lagging Strand
Complementary Base-Pairing
Parental (P Generation)
Homozygous
42. Bacteriophages that replicate by the lytic cycle - killing their host cells
Nucleotide
Virulent
DNA
A-site
43. 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
Testcross
Sex Linked Recessives
Start Codon
Varions
44. 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
Aminoacyl-tRNA synthetase
Lagging Strand
Termination Codons
Bacteriophage
45. Base sequence of mRNA is translated as a series of triplets
Aminoacyl-tRNA synthetase
Punnet Square Diagram
Transformation
Codons
46. 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
Codominance
Transcription
Virulent
Point Mutation
47. TRNA binding site for ribosomes to attach to the growing polypeptide chain (peace out site)
Varions
Incomplete Dominance
P-site
Phenotype
48. Codes for the synthesis of a repressor molecule that binds to the operator and blocks RNA polymerase form transcribing the structural genes
Sex Linked Recessives
Regulator Gene
Transcription
Gene Mutation
49. Cell burst
Lyse
Parental (P Generation)
Homozygous
Genetics
50. 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
Polyribosome
Phenotype
Translocation
Point Mutation