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Test your basic knowledge |
CSET Genetics And Evolution
Start Test
Study First
Subjects
:
cset
,
science
,
genetics
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. Is any chromosome that is not a sex chromosome.
Mesozoic era
Autosomes
Double Helix
Heterozygote
2. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
deoxyribonucleic acid
Gene frequency
mRNA
Bottle neck effect
3. Form of reproductive isolation in which tere are differences in species courtship behavior
Behavioral (ethological) Isolation
Genetic Drift
Gene
Hybrid
4. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
molecular evidence
Founder Effect
Ice
Heterozygous
5. Periods of little adaptive change
Macroevolution
Substitution
Chromosome mutation
Stasis
6. The region of the chromosome that holds the two sister chromatids together during mitosis
Homozygote
Mass Extinction
Centromere
restriction enzyme
7. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.
Natural Selection
Semi - conservative replication
Igneous and metamorphic rock
Variation
8. Determined the concept of complementary base pairing
Chargaff
Mechanical (morphological) Isolation
Genetic Equilibrium
Hershey and Chase
9. shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.
Double Helix
Monophyletic
Meiosis
Medel worked with _____
10. Change in a DNA sequence that affects genetic information
DNA
Translocation
Genetic Equilibrium
Mutation
11. Is active during transcription
Mitosis
Translocation
molecular evidence
RNA polymerase
12. Natural selection that causes the frequency of a particular allele to move in one direction
Directional Selection
Testcross
Guanine
Gamete Isolation
13. The number of times an allele appears in a population
homologous (Evolution Evidence)
Heritable variation
Allele Frequency
Dominant
14. A trait that masks the expression of another trait
Dominant
Ring Species
Sedimentary Rock
deoxyribose and phosphate
15. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Directional Selection
Sexual Selection
amino acids
analogous (Evolution Evidence)
16. What does DNA stand for...
Cytosine
Species
Guanine
deoxyribonucleic acid
17. Proteins are made of...
Heterozygous
amino acids
Vestigial structure
Heritable variation
18. Large - scale evolutionary changes that take place over long periods of time
Ecological Barrier
Endemic
Macroevolution
Sedimentary Rock
19. Because of base pairing in DNA the amount of
Sympatric Speciation
Codon
cytosine in DNA is about equal to the percentage of guanine molecules
Allele
20. The evolutionary process by which a species becomes better suited to its niche.
Adaptation
genes
Comparative anatomy
Gametic
21. Recognize and cut DNA at specific sequences usually palindromes
tRNA
Vestigial organs
restriction enzyme
Coevolution
22. The gradual changes in gene frequencies in a population due to random events
Gene mutation
Genetic Drift
Homologous Structures
Comparative Anatomy
23. Ribosomes are made of...
rRNA
Mendel's traits are now called _____ found on DNA
nucleotides
Selection pressure
24. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Rosalind Franklin
Evo Devo
Genotype
Phyletic Gradualism (anagenesis)
25. An episode of large - scale extinction affecting many different groups of organisms within a short period of time
Chiasma
Mass Extinction
Ecological Barrier
Thymine
26. A codon is made of...
3 nucleotides
Pre -zygotic Mechanisms
rRNA
Genotype
27. Separates DNA by size
genes
gel electrophoresis
deoxyribose and phosphate
Somatic
28. Hybrid is sterile so biologically unfit
Hybrid Infertility
Mechanical (morphological) Isolation
Parallel Evolution
Sympatric Speciation
29. When competition causes two closely related species to become more different in regions where their ranges overlap
Somatic
Substitution
Gene frequency
Character Displacement
30. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
Gene flow
Microevolution
clinC
GATTACA
31. These prevent fertilization between species e.g. diff breeding season - mating behaviour
transcription
Insertion
Divergent Evolution
Pre -zygotic Mechanisms
32. The sum total of an organism's requirements; its way of life
Niche
Mold
three
Locus
33. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance
tRNA
Natural Selection
Deme
Alleles
34. Embryos of similar organisms have very similar early development indicating similar DNA at work
Sexual Selection
Comparative Embryology
Incomplete Dominance
Guanine
35. Building block of a protein
amino acid
Polyploidy
Duplication
Deme
36. Method of replication that implies that each new strand of DNA is half original and half new
Recessive
Speciation
Sedimentary Rock
Semi - conservative replication
37. Chromosomes are collections of many
chromatin
Post -zygotic Mechanisms
Duplication
genes
38. A geographic gradient in the extent to which a character is developed in a species
tRNA
Comparative anatomy
clinC
Crossing over
39. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
rRNA
Temporal Isolation
Monohybrid
Germ
40. The individuals choice of which mate they will choose. The choice is dependant on what traits the individual finds attractive. e.g some people will want their mates to be smart or pretty.
Geographical Isolation
Mechanical (morphological) Isolation
Heterozygous
Mate Selection
41. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Incomplete Dominance
vestigial (Evolution Evidence)
restriction enzymes - sticky ends
Gametic
42. Three mRNA nucleotides that code for a specific amino acid
Selection
codon
Chromosome mutation
Stabilising
43. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Analogous Features
If you lose one then you will still have one to back you up.
ribose - phosphate - and a base
Testcross
44. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
tRNA
clinC
DNA
Pentadactyl limb
45. A copy of a gene is made during a process called this
transcription
Homologous Structures
Biogeography
Comparative Anatomy
46. A population partially isolated from other populations of the same species
Deme
Environment
Allele
Species
47. Actual remains of an organism such as bones - teeth - shells - etc.
Ice
Evo Devo
body fossils
mutation
48. Form of reproductive isolation in which two populations reproduce at different times
Heterozygous
Polyploidy
Temporal Isolation
Cytosine
49. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.
Founder effect
Species
cytoplasm
Gametic
50. Gradual evolution within a lineage
Hybrid Infertility
Sequential Evolution
Gamete Isolation
Cast