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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. The type of environment in which an organism or group normally lives or occurs
Habitat
Deme
GATTACA
Hershey and Chase
2. During transcription an RNA molecule is formed
that is complementary to a single strand of DNA
Disruptive Selection
Phylogeny
Hybrid
3. A pairing where the parent plants differ in only one character.
Variation
Monohybrid Cross
cytosine in DNA is about equal to the percentage of guanine molecules
Fitness
4. Form of reproductive isolation in which two populations reproduce at different times
Evolution
vestigial (Evolution Evidence)
Temporal Isolation
Cenozoic era
5. A group of organisms of the same species occupying a given area.
true
Population
Fitness
Locus
6. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Phyletic Gradualism (anagenesis)
Species
Gametic
Coevolution
7. A DNA double helix is held together in the center by between nitrogenous bases
rRNA
Niche
hydrogen bonds
If you lose one then you will still have one to back you up.
8. The environmental factors that favour certain phenotypes
introns
Evo Devo
Recessive
Selection pressure
9. The region of the chromosome that holds the two sister chromatids together during mitosis
Centromere
Sympatric Speciation
Ice
Biogeography
10. What is one benefit for having two strands of DNA?
Amber
If you lose one then you will still have one to back you up.
Nucleotide
Monohybrid Cross
11. Predicts the possible outcome of a genetic cross.
Centromere
Precambrian era
Punnett Square
Testcross
12. The independant evolution of similar traits - starting from a similar ancestral condition
Insertion
Gene Pool
Parallel Evolution
Analogous structures
13. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.
Heterozygous
ribose - phosphate - and a base
Adenine
Homologous Structures
14. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
mRNA
Fossils
Ice
trace fossils
15. These prevent fertilization between species e.g. diff breeding season - mating behaviour
Alleles
Pre -zygotic Mechanisms
Coevolution
Population
16. Because of base pairing in DNA the amount of
Habitat
Homozygous
False genes
cytosine in DNA is about equal to the percentage of guanine molecules
17. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Bottleneck Effect
Cytosine
Phylogeny
amino acid
18. Actual remains of an organism such as bones - teeth - shells - etc.
body fossils
polypeptide
Founder effect
mRNA
19. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Fossils
Genotype
Ecological Barrier
Analogous structures
20. Translation occurs in the...
index fossil
cytoplasm
Biogeography
Natural Selection
21. Trait evolves overtime; NO common ancestry
Comparative embryology
Geologic Evolution
Species
analogous (Evolution Evidence)
22. Two alternative forms of a gene e.g Tall vs Short
Alleles
rRNA
Common Ancestor
Mass Extinction
23. Innate trait; shared ancestry
If you lose one then you will still have one to back you up.
Incomplete Dominance
homologous (Evolution Evidence)
Homozygous
24. A limb with five digits (fingers)
Codon
introns
transcription
Pentadactyl limb
25. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long
tRNA
Convergent Evolution
DNA
Rosalind Franklin
26. All the factors in an organism's surroundings that can potentially affect it
Biogeography
Clade
Environment
mRNA
27. Organ no longer serves a function
vestigial (Evolution Evidence)
Dihybrid Cross
Genetic Equilibrium
Natural Selection
28. Three mRNA nucleotides that code for a specific amino acid
Fitness
Thymine
NIche Isolation
codon
29. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Translocation
Genome
Phyletic Gradualism (anagenesis)
Deme
30. One of the identical rods of a chromosome.
Chromatid
Ecological Barrier
Geographical Isolation
trace fossils
31. The movement of genes between populations as a result of mating of migration
Analogous Features
Divergent Evolution
Gene Flow
embryological evidence
32. Breeding organisms with specific traits in order to produce offspring with identical traits
Hybrid Inviability
Gene Flow
Artificial selection
Ice
33. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.
Mutagen
Speciation
Igneous and metamorphic rock
Reproductive Isolation
34. Term used to refer to an organism that has two identical alleles for a particular trait. e.g TT is the homozygous genotype for Tall.
Homozygous
Microevolution
Adaptation
hydrogen bonds
35. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes. Mitosis involves growth and repair and occurs in the body cells.
Centromere
Mitosis
embryological evidence
Reproductive Isolation
36. Building block of a protein
Immigration
Deletion
deoxyribonucleic acid
amino acid
37. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Parallel Evolution
Geographical Isolation
Mutation
Allele
38. Method of replication that implies that each new strand of DNA is half original and half new
Semi - conservative replication
Vestigial structure
vestigial (Evolution Evidence)
Hybrid Breakdown
39. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Genetic Equilibrium
Sedimentary Rock
Precambrian era
transcription
40. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Natural Selection
tRNA
Genetic Equilibrium
Incomplete Dominance
41. Is the evolutionary process whereby a population becomes better suited to its habitat
Gametic
Adaptation
Industrial Melanism
Biogeography
42. A copy of a gene is made during a process called this
Ice
trace fossils
geologic time scale
transcription
43. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.
Gene
Petrification
restriction enzyme
Mesozoic era
44. Visual expression of a trait
Clade
tRNA
Hybrid
Phenotype
45. The capacity of an individual of certain genotype to reproduce. It is usually equal to the proportion of the individual's genes in all the genes of the next generation
Mechanical (morphological) Isolation
Fitness
The cell uses information from mRNA to produce proteins
Phenotype
46. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Genome
Geologic Evolution
Evo Devo
Punctuated Equilibrium
47. Used x ray cyrstallography to create an image of DNA
Punctuated Equilibrium
Rosalind Franklin
Gene Pool
Nucleotide
48. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
Vestigial organs
molecular evidence
Monohybrid
Genome
49. Embryos of similar organisms have very similar early development indicating similar DNA at work
Heterozygous
stop codon
Comparative Embryology
Biogeography
50. Cross where you cross unknown genotype with a recessive
tRNA
Dihybrid
Test Cross
Ecological (habitat) Isolation