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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. Natural selection that causes the frequency of a particular allele to move in one direction
Disruptive Selection
Heritable variation
Gene Pool
Directional Selection
2. Impression made from a organism in soft material such as sand or mud.
Mold
restriction enzyme
Comparative anatomy
Petrification
3. 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.
GATTACA
Igneous and metamorphic rock
Hybrid
Genetic Equilibrium
4. Mutation where an extra base is added
three
restriction enzymes - sticky ends
Insertion
Convergent Evolution
5. The study relating the evolution of new charateristics to changes in the genes controlling development
transcription
Evo Devo
Sub - species
introns
6. 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.
RNA polymerase
Amber
Polyploidy
Gene
7. Pea plants
Medel worked with _____
Hominid
Adenine
Hershey and Chase
8. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.
mRNA
Mass Extinction
watson and crick
Homologous pair
9. Evolution resulting from small specific genetic changes that can lead to a new subspecies
cytoplasm
Genotype
Microevolution
Allele Frequency
10. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Incomplete Dominance
Cenozoic era
Dihybrid Cross
Heritable variation
11. When F1 is fully fertile but F2 has low fertility (rice - cotton)
Variation
Hybrid Breakdown
Germ
Semi - conservative replication
12. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
three
Cenozoic era
Mechanical (morphological) Isolation
Sex Chromosomes
13. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Comparative Anatomy
Cast
Pre -zygotic Mechanisms
Analogous Features
14. T or F A cloned organism has the same proteins as another organism
Chromosome mutation
Cytosine
False genes
its negative charge
15. Change in allele frequencies as a result of the migration of a small subgroup of a population
deoxyribonucleic acid
Founder Effect
Homologous pair
Punnett Square
16. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Diploid
Divergent Evolution
Hybrid Infertility
Artificial selection
17. Predicts the possible outcome of a genetic cross.
Species
amino acid
Punnett Square
Test Cross
18. The gradual changes in gene frequencies in a population due to random events
three
Phyletic Gradualism (anagenesis)
Character Displacement
Genetic Drift
19. The type of environment in which an organism or group normally lives or occurs
Adaptation
Gametic
Habitat
embryological evidence
20. Situation in which allele frequencies remain constant
Homologous pair
rRNA
Genetic Equilibrium
tRNA
21. What does DNA stand for...
Convergent Evolution
deoxyribonucleic acid
Crossing over
Sexual Selection
22. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
that is complementary to a single strand of DNA
Common Ancestor
Homozygote
Stabilising
23. The specific location of a gene on a chromosome
Ice
Clade
Locus
Gamete Isolation
24. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Hershey and Chase
thymine
Nucleotide
Monohybrid
25. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Hybrid Inviability
Homologous structures
Pre -zygotic Mechanisms
Character Displacement
26. Ribosomal RNA; type of RNA that makes up part of the ribosome
Relative dating
Chromatid
Genetic Drift
rRNA
27. Inherited feature that tends to prevent species from interbreeding with other species
mRNA
Natural Selection
Isolating Mechanism
Bottleneck Effect
28. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
cytosine in DNA is about equal to the percentage of guanine molecules
Comparative embryology
restriction enzyme
index fossil
29. A unique combination of traits that are passed down from one generation to another.
The cell uses information from mRNA to produce proteins
Heterozygous
RNA polymerase
Heritable variation
30. Organ no longer serves a function
Hominid
Homologous pair
Temporal Isolation
vestigial (Evolution Evidence)
31. A body cell
Microevolution
Immigration
transcription
Somatic
32. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y
Niche
Mass Extinction
Sex Chromosomes
Sub - species
33. An ancestor that two or more descendants have in common
Homologous pair
Industrial Melanism
Common Ancestor
Fossil
34. Chromosomes are collections of many
Genetic Drift
Comparative embryology
genes
Phyletic Gradualism (anagenesis)
35. Is any chromosome that is not a sex chromosome.
Homologous Structures
Autosomes
Phylogeny
Codon
36. Any agent that can cause a change in DNA
Nucleotide
Mutagen
true
Test Cross
37. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
nucleus
Precambrian era
Gene Flow
Pre -zygotic Mechanisms
38. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Endemic
Gene Pool
Habitat
Natural Selection
39. Method of replication that implies that each new strand of DNA is half original and half new
Convergent Evolution
Comparative embryology
Gametic
Semi - conservative replication
40. Another term for pure breeding
Homozygous
Variation
Heterozygous
Organic Evolution
41. A pairing where the parent plants differ in only one character.
amino acid
Germ
Monohybrid Cross
DNA
42. Used radioactive sulfur and radioactive phosphorus to determine that DNA is the genetic material - by demonstrating that it is DNA that is injected by bacteriophages into bacterial cells during infection
Coevolution
Duplication
Hershey and Chase
Mass Extinction
43. Proteins are made of...
tRNA
Population
Gene Pool
amino acids
44. The formation of new species as a result of evolution
Dihybrid Cross
chromatin
Analogous Features
Speciation
45. A change in the base sequence of a gene
Mutagen
Habitat
Character Displacement
Gene mutation
46. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
Phenotype
Adenine
Heterozygote
Dominant
47. Innate trait; shared ancestry
Population
Pentadactyl limb
Phenotype
homologous (Evolution Evidence)
48. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Gene Pool
Directional Selection
Dominant
Stabilising selection
49. Process by which one species gives rise to two or more species
Mold
Speciation
Convergent Evolution
Amber
50. A taxon originating from and including a single common ancestor
Sedimentary Rock
Evolution
Allele
Monophyletic
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