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. Genetic makeup of an individual
Genotype
Varions
Repressible Systems
Episomes
2. Begins at a unique origin of and proceeds in both directions simultaneously
Frameshift Mutation
Gene
Incomplete Dominance
Bacterial Replication
3. 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
4. Organisms that contain two copies of the same allele
Homozygous
Bacterial Replication
Drosophila Melanogaster
Elongation
5. If the bacterioophage does not lyse its host cell - it becomes integrated into the bacterial genome in a harmless form - lying dorant for one or more generations. the virus mays tay integrated indefinitely - replicating along with the bacterial gneom
Environmental Factors
Chromosomal Breakage
Operator Gene
Lysogenic Cycle
6. Consists of a single circular chromosome located in the nucleoid region of the cell
Codominance
Ribosomal RNA (rRNA)
Virulent
Bacterial Genome
7. System where the repressor is inactive until it combines with the corepressor
A-site
Repressible Systems
Environmental Factors
Ribosomes
8. Small circular rings of DNA which contain accessory genes
Mendel's Law of Dominance
Missense Mutation
Environmental Factors
Plasmids
9. The noncoding sequence of DNA that serves as the initial binding site for RNA polymerase
Filial (F generations)
Autosomes
Conjugation
Promoter gene
10. May occur spontaneously or be induced by environmental factors
Transformation
Chromosomal Breakage
Leading Strand
Messenger mRNA
11. 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
12. 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
Mendelian Genetics
Drosophila Melanogaster
Chromosomes
Genetics
13. Double stranded DNA molecule unwinds and separates into two single strands
DNA Replication
Plasmids
Polypeptide Synthesis
Start Codon
14. Formed between the amino acid attached to the tRNA in the A site and the fmet attached to the tRNA in the P site
Filial (F generations)
Peptide Bond
Transcription
Pyrimidines
15. New codon may code for a different amino acid
Missense Mutation
Mendel's Second Law: Law of Independent Assortment
Plasmid
Promoter gene
16. Structural component of ribsomes and is the most abundant of all RNA types -synthesized in the nucleolus
Translation
Double-Stranded Helix
Ribosomal RNA (rRNA)
Sex Linked
17. May be found on the plasmids and transferred into recipient cells along with these factors
Dominant Allele
Point Mutation
Antibody resistance
Lyse
18. 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
Binary fission
Punnet Square Diagram
Crosses
Autosomes
19. Alternative forms of genes when it exists in more than one form
Regulator Gene
Alleles
Recessive Allele
Semiconservative
20. Complementary to one of the mRNA codons
Antibody resistance
Gene Mutation
Anticodon
Chromosomal Breakage
21. Plasmids that are capable of integration into the bacterial genome
Plasmid
Nondisjunction
Episomes
Lysogenic Cycle
22. Can often affect the expression of a gene -interaction betwen the enironment and the genotype produces the phenotype
Pyrimidines
Environmental Factors
Nonsense Mutation
Virulent
23. 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
Nondisjunction
Episomes
Sex Linked
Transcription
24. 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
Polypeptide Synthesis
Inducer-Repressor Complex
RNA
Nonsense Mutation
25. Reproduction of bacterial cells and proliferate very rapidly under favorable conditions -asexual prcoess -3 kinds (transformation - conjugation and transduction)
Virulent
Homozygous
Heredity
Binary fission
26. Physical manifestation of the genetic makeup
Phenotype
Incomplete Dominance
Antibody resistance
Episomes
27. TRNA binding site for ribosomes to attach to the growing polypeptide chain (peace out site)
Crosses
Recessive Allele
Transcription
P-site
28. Short segments from lagging strand
Non-Mendelian Inheritance Patterns
Codominance
Okazaki fragments
Plasmid
29. An organism with a dominant phenotype of unknown genotype (Ax) is crossed with a phenotypically recessive organism
Sex Linked
Chromosomes
Backcross
Nucleotide
30. 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
Mendel's Second Law: Law of Independent Assortment
Point Mutation
Plasmid
31. Consists of structural genes
Mutations
Operon
tRNA Job
Antibody resistance
32. Adenine and guanine
Purines
Homozygous
Polypeptide Synthesis
Lyse
33. Degeneracy/redundancy of the genetic code since there are 64 different codons and only 20 amino acids
Nondisjunction
tRNA Job
DNA
Synonyms
34. 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
Dominant Allele
Transcription
Ribosomes
Lytic Cycle
35. New codon may be a stop codon
Ribosomes
Missense Mutation
Nonsense Mutation
P-site
36. Location of genes on DNA
Autosomes
RNA
Chromosomes
Inducer-Repressor Complex
37. The study of how traits are inherited from one generation to the next
Lyse
Mendel's First Law: Law of Segregation (Four Principles)
Antibody resistance
Genetics
38. 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
Ribosomes
Nonsense Mutation
Translation
Transformation
39. Chromosome fragment
Filial (F generations)
Promoter gene
Plasmid
Non-Mendelian Inheritance Patterns
40. Include incomplete dominance - and codominance
Start Codon
Operon
Homozygous
Non-Mendelian Inheritance Patterns
41. Each strand of DNA that is a template in the synthesis of two new daughter helices
tRNA Job
Termination Codons
Complementary Base-Pairing
Triplet Code
42. Occurs when linked genes are separated
Anticodon
Monocistronic
Recombination
Non-Mendelian Inheritance Patterns
43. Cell burst
DNA Replication
Lyse
Ribosomal RNA (rRNA)
P-site
44. One mRNA strand codes for one polypeptide
Mendel's Law of Dominance
Parental (P Generation)
Peptide Bond
Monocistronic
45. DNA language must be translated by mRNA in such a way as to produce the 20 words in the amino acid language
Environmental Factors
RNA
Ribosomes
Triplet Code
46. Progeny phenotypes are apparently blends of the parental phenotypes
Ribosomes
Sex Linked Recessives
Incomplete Dominance
Testcross
47. Nucleic acids are deleted or inserted into the genome sequence (lethal)
Mendel's Law of Dominance
Monohybrid Cross
Frameshift Mutation
Purines
48. Sugar-phosphate chains on the outside of the helix and the bases on the inside -C-G - T-A -AKA Watson Crick DNA model
Gene
Sex Linked
Sex Linked Recessives
Double-Stranded Helix
49. 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
Binary fission
Anticodon
Translocation
Nucleotide
50. 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
Inducible Systems
Gene Mutation
Transcription
Translocation