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Test your basic knowledge |
CSET Genetics And Evolution
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Subjects
:
cset
,
science
,
genetics
Instructions:
Answer 50 questions in 15 minutes.
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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. Evolution resulting from small specific genetic changes that can lead to a new subspecies
Microevolution
Fitness
Gene Pool
Environment
2. Movement of organisms ro of from a population
Species
Test Cross
Migration
Heterozygous
3. A change in the base sequence of DNA; the ultimate source of new alleles
Mutation
Gene Pool
Cast
Endemic
4. The region of the chromosome that holds the two sister chromatids together during mitosis
Centromere
Comparative anatomy
Rosalind Franklin
that is complementary to a single strand of DNA
5. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Biogeography
thymine
Geologic Evolution
The cell uses information from mRNA to produce proteins
6. The type of environment in which an organism or group normally lives or occurs
Environment
Haploid/Monoploid
proteins
Habitat
7. Translation occurs in the...
cytoplasm
nucleotide
Gene flow
Variation
8. What does DNA stand for...
Comparative anatomy
ribose - phosphate - and a base
deoxyribonucleic acid
Allele Frequency
9. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Mendel's traits are now called _____ found on DNA
Reproductive Isolation
Species
Sedimentary Rock
10. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
its negative charge
Ice
mRNA
stop codon
11. Genes contain instructions for assembling
Mold
Phylogeny
proteins
Phyletic Gradualism (anagenesis)
12. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
GATTACA
Translocation
Analogous structures
that is complementary to a single strand of DNA
13. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Stabilising selection
Endemic
Population
deoxyribose and phosphate
14. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Chromosome mutation
Behavioral (ethological) Isolation
anticodon
Hybrid
15. 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
Endemic
Homozygous
polypeptide
16. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Dihybrid Cross
Precambrian era
DNA fingerprint
three
17. Process by which one species gives rise to two or more species
tRNA
Heterozygote
Speciation
rRNA
18. The movement of genes between populations as a result of mating of migration
Disruptive Selection
Gene Flow
Character Displacement
Selection pressure
19. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
Mendel's Principle of Segregation
Comparative embryology
Ecological Barrier
trace fossils
20. How many codons are needed to specify three amino acids
Adaptation
Post -zygotic Mechanisms
three
Genome
21. Transcrition occurs in the...
analogous (Evolution Evidence)
Diploid
nucleus
deoxyribose and phosphate
22. Disappearance of a species from all parts of its geographical range
Environment
Extinction
Adaptation
Phenotype
23. These prevent fertilization between species e.g. diff breeding season - mating behaviour
Gamete Isolation
Comparative anatomy
Pre -zygotic Mechanisms
Directional Selection
24. Even if the gametes of the two species meet - fertilization does not occur
Gamete Isolation
Guanine
Bottleneck Effect
Monohybrid Cross
25. Proteins are made of...
Translocation
Directional Selection
codon
amino acids
26. Breeding organisms with specific traits in order to produce offspring with identical traits
cytosine in DNA is about equal to the percentage of guanine molecules
tRNA
Bottle neck effect
Artificial selection
27. Selection for the ability to obtain a mate
Hybrid Breakdown
Sexual Selection
body fossils
Heritable variation
28. Because of base pairing in DNA the amount of
Mendel's traits are now called _____ found on DNA
Monohybrid Cross
cytosine in DNA is about equal to the percentage of guanine molecules
Monophyletic
29. Name for oism with one dominant and one recessive allele
Comparative embryology
Variation
Heterozygous
Stabilising selection
30. DNA is made of...
nucleotides
transcription
stop codon
Homozygous
31. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Cytosine
Sub - species
Dominant
Ring Species
32. Different alleles for a gene
Hybrid
Bottleneck Effect
Heterozygote
NIche Isolation
33. A distinct population of a species that varies from other populations of the same species.
Sub - species
polypeptide
RNA polymerase
Stasis
34. Independent segregation of genes during the formation of gametes
Extinction
Homologous structures
Founder Effect
Independent assortment
35. Gene
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36. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Deletion
Test Cross
Genome
Bottle neck effect
37. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
anticodon
Dihybrid Cross
Adenine
Comparative embryology
38. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Diploid
Variation
Stabilising
Divergent Evolution
39. Which type of Rna functions as a blue print of the genetic code
Cytosine
Variation
mRNA
homologous (Evolution Evidence)
40. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
its negative charge
Post -zygotic Mechanisms
watson and crick
Guanine
41. A nucleotide of RNA is made of...
Molecular biology
Chiasma
The cell uses information from mRNA to produce proteins
ribose - phosphate - and a base
42. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles
Adaptive Radiation
Phenotype
Dihybrid
Somatic
43. A combining of genes or characters different from what they were in the parents
Mesozoic era
Recombination
Niche
Double Helix
44. Process by which a ribosome uses the code on mRNA to make proteins
Comparative embryology
Fitness
Gene Flow
translation
45. T or F If a nucleic acid contain uracil it is DNA
Insertion
Petrification
Reproductive Isolation
False RNA
46. 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
Gene pool
Species
Founder Effect
Mendel's traits are now called _____ found on DNA
47. An ancestor that two or more descendants have in common
Evo Devo
Common Ancestor
Mendel's Principle of Segregation
nucleus
48. T or F A cloned organism has the same proteins as another organism
Balanced Polymorphism
False genes
anticodon
Evo Devo
49. Mutation where an extra base is added
RNA polymerase
Insertion
nucleotides
Isolating Mechanism
50. Periods of little adaptive change
DNA
Stasis
Selection pressure
Locus
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