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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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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. Visual expression of a trait
Post -zygotic Mechanisms
Phenotype
Microevolution
Independent assortment
2. Impression made from a organism in soft material such as sand or mud.
Mold
Cast
Genotype
Chiasma
3. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles
Dihybrid
Migration
Disruptive Selection
Deletion
4. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Ecological (habitat) Isolation
Mendel's Principle of Segregation
Convergent Evolution
Bottle neck effect
5. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
RNA polymerase
Igneous and metamorphic rock
Stabilising
analogous (Evolution Evidence)
6. Is found in DNA
GATTACA
Igneous and metamorphic rock
nucleotide
thymine
7. Consists of all genes - including all the different alleles - that are present in a population
Gene pool
Gamete Isolation
Species
Stasis
8. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
mRNA
Sequential Evolution
Cytosine
Genetic Drift
9. 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
tRNA
Mass Extinction
Species
molecular evidence
10. 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.
Mitosis
Translocation
GATTACA
Post -zygotic Mechanisms
11. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
GATTACA
Hybrid Breakdown
Locus
embryological evidence
12. T or F a codon consist of three nucleotides
Heritable variation
Heterozygote
Centromere
true
13. Found only in that country
mRNA
Endemic
Insertion
Autosomes
14. The study of the past and present distribution of species.
Stabilising selection
Biogeography
False RNA
Substitution
15. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Precambrian era
Chiasma
Species
Migration
16. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Amber
Allele
its negative charge
deoxyribose and phosphate
17. 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
Analogous Structures (analogies)
RNA polymerase
Pre -zygotic Mechanisms
Molecular biology
18. Separates DNA by size
Alleles
three
gel electrophoresis
Test Cross
19. A trait that masks the expression of another trait
Pre -zygotic Mechanisms
clinC
Dominant
Organic Evolution
20. Translation occurs in the...
Punctuated Equilibrium
cytoplasm
mutation
Heritable variation
21. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Double Helix
Natural Selection
vestigial (Evolution Evidence)
Convergent Evolution
22. Situation in which allele frequencies remain constant
Hybrid Inviability
Genetic Equilibrium
Bottleneck Effect
molecular evidence
23. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Chargaff
Phyletic Gradualism (anagenesis)
False RNA
ribose - phosphate - and a base
24. What is one benefit for having two strands of DNA?
Crossing over
If you lose one then you will still have one to back you up.
Mendel's traits are now called _____ found on DNA
Niche
25. 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
Chromosome mutation
Coevolution
thymine
26. 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.
Directional Selection
mRNA
Artificial selection
Gametic
27. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
trace fossils
Microevolution
Divergent Evolution
mutation
28. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Hybrid Inviability
Duplication
deoxyribonucleic acid
Guanine
29. Natural selection that causes the frequency of a particular allele to move in one direction
Codon
Double Helix
Balanced Polymorphism
Directional Selection
30. Large - scale evolutionary changes that take place over long periods of time
Macroevolution
restriction enzyme
Deletion
Gene frequency
31. Form of reproductive isolation in which two populations reproduce at different times
Adaptive Radiation
The cell uses information from mRNA to produce proteins
Variation
Temporal Isolation
32. Dna moves during electrophoresis because of...
Speciation
its negative charge
Post -zygotic Mechanisms
Endemic
33. The final product of transcription is...
Migration
mRNA
Mitosis
Adenine
34. 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.
Diploid
Heterozygous
tRNA
RNA polymerase
35. An episode of large - scale extinction affecting many different groups of organisms within a short period of time
analogous (Evolution Evidence)
Mesozoic era
Comparative anatomy
Mass Extinction
36. Hybrid is sterile so biologically unfit
Endemic
Evo Devo
Hybrid Infertility
Crossing over
37. Genes contain instructions for assembling
Industrial Melanism
proteins
Mitosis
Crossing over
38. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful
The cell uses information from mRNA to produce proteins
Common Ancestor
NIche Isolation
Post -zygotic Mechanisms
39. Nucleotides that control which amino acids are added during protein synthesis
homologous (Evolution Evidence)
Bottleneck Effect
Codon
False genes
40. The adaptive increase in pigmentation as a result of human - induced pollutants
Industrial Melanism
Phylogeny
Selection pressure
Variation
41. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.
Genotype
Comparative embryology
Locus
Molecular biology
42. Evolution resulting from small specific genetic changes that can lead to a new subspecies
nucleus
Medel worked with _____
Microevolution
Genome
43. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Selection
Test Cross
Isolating Mechanism
Heterozygous
44. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Cenozoic era
Molecular biology
Fossil
Coevolution
45. Three mRNA nucleotides that code for a specific amino acid
mRNA
codon
Sympatric Speciation
Chromosomes
46. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.
Locus
Duplication
Chromosomes
Evolution
47. When F1 is fully fertile but F2 has low fertility (rice - cotton)
Somatic
Hybrid Breakdown
Mesozoic era
Sedimentary Rock
48. Building block of a nucleic acid (DNA and RNA)
replication
amino acids
index fossil
nucleotide
49. Periods of rapid evolution punctuated by periods of little change
Punctuated Equilibrium
mRNA
anticodon
Monophyletic
50. Change to a chromosome in which part of the chromosome is repeated
Meiosis
clinC
Duplication
DNA fingerprint
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