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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. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry
Organic Evolution
Fossil
stop codon
Analogous Structures (analogies)
2. 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.
Dominant
Homologous structures
Variation
Sexual Selection
3. Which structure contains anticodons
Speciation
tRNA
deoxyribose and phosphate
Heterozygote
4. A type of barrier between species; the species remain isolated because male and femal gametes of the different species cannot fuse - or they die before they unite.
Translocation
Phylogeny
Gametic
nucleus
5. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells
Insertion
analogous (Evolution Evidence)
transcription
Histone
6. 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.
Balanced Polymorphism
Chiasma
Igneous and metamorphic rock
Founder effect
7. 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.
Gene mutation
trace fossils
Monohybrid
Homozygous
8. Determined the complete double helical structure of DNA
watson and crick
Coevolution
Homozygous
Gene flow
9. Predicts the possible outcome of a genetic cross.
Alleles
Fossils
Mutation
Punnett Square
10. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
thymine
Common Ancestor
Isolating Mechanism
tRNA
11. 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
Pentadactyl limb
Natural Selection
Population
Homozygote
12. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups
Species
Rosalind Franklin
Germ
its negative charge
13. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Genetic Equilibrium
Adenine
Gene Pool
Genetic Drift
14. Used x ray cyrstallography to create an image of DNA
Isolating Mechanism
Rosalind Franklin
Chromosome mutation
Parallel Evolution
15. Consists of all genes - including all the different alleles - that are present in a population
Gene pool
False genes
Speciation
clinC
16. Even if the gametes of the two species meet - fertilization does not occur
Species
Speciation
Hybrid
Gamete Isolation
17. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.
Allopatric Speciation
GATTACA
Chromosome mutation
tRNA
18. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
Hybrid
Comparative embryology
Incomplete Dominance
Mechanical (morphological) Isolation
19. Process by which a ribosome uses the code on mRNA to make proteins
Cenozoic era
Immigration
Organic Evolution
translation
20. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Immigration
Cast
Hershey and Chase
geologic time scale
21. The gradual changes in gene frequencies in a population due to random events
Isolating Mechanism
Analogous Structures (analogies)
Gene pool
Genetic Drift
22. Selection for the ability to obtain a mate
Hershey and Chase
Homozygote
Sexual Selection
Histone
23. Chromosomes are collections of many
genes
Bottleneck Effect
DNA fingerprint
Artificial selection
24. Organ no longer serves a function
Deme
Stabilising
analogous (Evolution Evidence)
vestigial (Evolution Evidence)
25. Is any chromosome that is not a sex chromosome.
Precambrian era
Mitosis
Autosomes
Thymine
26. The enzyme that binds to the promoter region of a gene during transcription is called...
Genome
Industrial Melanism
RNA polymerase
molecular evidence
27. Geologic period that followed the Precambrian;means 'ancient life' - early life (570-286 million years ago); single cell organisms - shells - mollusks - rise of first vertebrates - rise of land plants - amphibians - insects - seed plants - and trees
Testcross
Gene mutation
If you lose one then you will still have one to back you up.
Paleozoic era
28. Movement of alleles into or out of a population due to the migration of individuals to or from the population
RNA polymerase
Sedimentary Rock
Migration
Gene flow
29. A codon is made of...
3 nucleotides
Allele Frequency
Ice
Homologous pair
30. Any agent that can cause a change in DNA
Mutagen
tRNA
Incomplete Dominance
Adaptation
31. Visual expression of a trait
Phenotype
Dihybrid Cross
Immigration
Gamete Isolation
32. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Guanine
transcription
Monohybrid
restriction enzyme
33. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Niche
Post -zygotic Mechanisms
mRNA
Geologic Evolution
34. Periods of rapid evolution punctuated by periods of little change
Phenotype
that is complementary to a single strand of DNA
Histone
Punctuated Equilibrium
35. Independent segregation of genes during the formation of gametes
Homologous pair
Independent assortment
rRNA
Natural Selection
36. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
Mendel's Principle of Segregation
Recessive
Alleles
37. An evolutionary 'branch' and its daughter 'twigs'
Environment
Mechanical (morphological) Isolation
Clade
Mutation
38. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Reproductive Isolation
Speciation
Temporal Isolation
Disruptive Selection
39. Selection acting against the middle of a range of variation
Behavioral (ethological) Isolation
Analogous structures
Disruptive Selection
Founder Effect
40. A change or error in the DNA sequence
Adaptation
proteins
Endemic
mutation
41. Two alternative forms of a gene e.g Tall vs Short
Alleles
Evolution
tRNA
Pentadactyl limb
42. The formation of new species as a result of evolution
Speciation
Molecular biology
Locus
Balanced Polymorphism
43. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.
Relative dating
Divergent Evolution
Testcross
Deme
44. The comparison of the structures of different organisms
Histone
Sexual Selection
true
Comparative anatomy
45. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area
Endemic
Ecological (habitat) Isolation
Homozygote
Sedimentary Rock
46. Evolution of living things - based on evidence from the past and present.
Haploid/Monoploid
Selection pressure
Allele Frequency
Organic Evolution
47. Inherited feature that tends to prevent species from interbreeding with other species
mRNA
Isolating Mechanism
Adaptation
Character Displacement
48. A unique combination of traits that are passed down from one generation to another.
Heritable variation
Gene
Heterozygous
Gene frequency
49. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Geographical Isolation
Post -zygotic Mechanisms
Stabilising selection
Mold
50. The evolutionary history/geneology of a group of organisms (a tree thingy)
Phylogeny
RNA polymerase
ribose - phosphate - and a base
Hybrid Infertility