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. Progeny phenotypes are apparently blends of the parental phenotypes
Filial (F generations)
Polypeptide Synthesis
Lagging Strand
Incomplete Dominance
2. Nucleic acid is replaced by another nucleic acid
Heterozygous
Transcription
Operator Gene
Point Mutation
3. New codon may code for the same amino acid
Promoter gene
Episomes
Genotype
Silent Mutation
4. Begins at a unique origin of and proceeds in both directions simultaneously
Bacterial Replication
Peptide Bond
Lytic Cycle
Filial (F generations)
5. Consists of structural genes
Heterozygous
Leading Strand
Operon
Ribosomes
6. 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
Varions
Okazaki fragments
Ribosomal RNA (rRNA)
7. Plasmids that are capable of integration into the bacterial genome
Mutations
Codons
Episomes
Parental (P Generation)
8. Self replication ensures that its coded sequence will be passed on to successive generations
A-site
Heredity
Promoter gene
Environmental Factors
9. Brings amino acids to the ribosomes in the correct sequence for polypeptide synthesis -recognizes both the amino acid and the mRNA codon
Sex Linked
Chromosomes
tRNA Job
Bacterial Genome
10. Reproduction of bacterial cells and proliferate very rapidly under favorable conditions -asexual prcoess -3 kinds (transformation - conjugation and transduction)
Recombination
Binary fission
Nonsense Mutation
Testcross
11. Progeny generations
Dominant Allele
A-site
Filial (F generations)
Regulator Gene
12. Degeneracy/redundancy of the genetic code since there are 64 different codons and only 20 amino acids
Codominance
Bacterial Replication
Synonyms
Ribosomes
13. May occur spontaneously or be induced by environmental factors
Punnet Square Diagram
Mutable
Point Mutation
Chromosomal Breakage
14. New codon may code for a different amino acid
Drosophila Melanogaster
Transcription
Testcross
Missense Mutation
15. 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
Inducer-Repressor Complex
Regulator Gene
Backcross
Drosophila Melanogaster
16. System where the repressor binds to the operator - forming a barrier that prevents RNA polymerase from transcribing the structural genes
Binary fission
Gene
Messenger mRNA
Inducible Systems
17. Synthesized discontinuously in the 5'->3' direction (since DNA polymerase synthesizes only in that direction) as a series Okazaki fragments
Conjugation
Purines
Mutations
Lagging Strand
18. Only one trait is being studied in this particular mating
Environmental Factors
Monohybrid Cross
Homozygous
Lyse
19. Complementary to one of the mRNA codons
Recombination
Nondisjunction
Operon
Anticodon
20. Formed between the amino acid attached to the tRNA in the A site and the fmet attached to the tRNA in the P site
Peptide Bond
Leading Strand
Start Codon
Nondisjunction
21. Base sequence of mRNA is translated as a series of triplets
Codons
Monohybrid Cross
Nucleotide
Nonsense Mutation
22. The process by which a foreign plasmid is incorporated into the bacterial chromosome via recombination - creating new inheritable genetic combinations
Gene
Transcription
Transformation
Virulent
23. Bacteriophages that replicate by the lytic cycle - killing their host cells
Translation
Plasmids
Dominant Allele
Virulent
24. An organism with a dominant phenotype of unknown genotype (Ax) is crossed with a phenotypically recessive organism
Genotype
Heterozygous
Inducer-Repressor Complex
Backcross
25. Genes that are located on the X or Y chromosome -in humans - most are located on the X
Codons
Regulator Gene
Nonsense Mutation
Sex Linked
26. The noncoding sequence of DNA that serves as the initial binding site for RNA polymerase
Promoter gene
Double-Stranded Helix
Plasmid
Parental (P Generation)
27. Adenine and guanine
Purines
Alleles
Environmental Factors
Lagging Strand
28. 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
P-site
Mendelian Genetics
Testcross
Repressible Systems
29. 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
30. Daughter strand that is continuously synthesized by DNA polymerase in the 5'->3' direction
Bacterial Genome
Genotype
Leading Strand
Chromosomal Breakage
31. Basic unit of heredity
Plasmids
Gene
Anticodon
Non-Mendelian Inheritance Patterns
32. 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
33. Can be altered under certain conditions - altering the corresponding characteristics in the organism
Complementary Base-Pairing
Pyrimidines
Mutable
Transduction
34. Induce mutations -include cosmic rays - X rays - UV rays - and radioactivity
Filial (F generations)
Inducible Systems
Heredity
Mutagenic Agents
35. Structural component of ribsomes and is the most abundant of all RNA types -synthesized in the nucleolus
Filial (F generations)
Drosophila Melanogaster
Ribosomal RNA (rRNA)
Transcription
36. Location of genes on DNA
Chromosomes
RNA
Virulent
Gene
37. 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
Nondisjunction
Crosses
Purines
Monohybrid Cross
38. May be found on the plasmids and transferred into recipient cells along with these factors
Virulent
Antibody resistance
Sex Linked
Transcription
39. Occurs when fragments of the bacterial chromosome accidentally become packaged into viral progeny produced during a viral infection
Silent Mutation
Chromosomes
Transduction
Recessive Allele
40. Where protein synthesis occurs
Ribosomes
Backcross
Mendelian Genetics
Lytic Cycle
41. 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
Sex Linked
Anticodon
Homozygous
Nondisjunction
42. Cell burst
Lytic Cycle
Transduction
Lyse
Homozygous
43. The study of how traits are inherited from one generation to the next
Conjugation
Genetics
Repressible Systems
Lysogenic Cycle
44. Developed the basic principles of genetics through his experiments with the garden pea
Chromosomal Breakage
Mendelian Genetics
RNA
Drosophila Melanogaster
45. 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
Transcription
Chromosomal Breakage
Translation
A-site
46. 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
Transduction
Transfer RNA (tRNA)
Recombination
Peptide Bond
47. Can often affect the expression of a gene -interaction betwen the enironment and the genotype produces the phenotype
Environmental Factors
Incomplete Dominance
Drosophila Melanogaster
Ribosomes
48. Organisms that carry two different alleles
Alleles
Heterozygous
Drosophila Melanogaster
Start Codon
49. 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
Operon
Alleles
Nucleotide
Dihybrid Cross
50. Pairs of homologues in sexually differentiated species
Virulent
Binary fission
Autosomes
Recessive Allele