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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. Determined the complete double helical structure of DNA
Paleozoic era
Absolute dating
watson and crick
stop codon
2. 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
Post -zygotic Mechanisms
Semi - conservative replication
Sex Chromosomes
False RNA
3. Change to a chromosome in which a fragment of the chromosome is removed
Gene flow
Deletion
translation
Gene pool
4. When F1 is fully fertile but F2 has low fertility (rice - cotton)
Substitution
Chromatid
Hybrid Breakdown
Deme
5. What happens during the process of translation
Cast
The cell uses information from mRNA to produce proteins
Phenotype
chromatin
6. A population partially isolated from other populations of the same species
Deme
Gamete Isolation
Recombination
Analogous structures
7. Ribosomes are made of...
rRNA
mutation
Locus
Artificial selection
8. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
Mutagen
Mechanical (morphological) Isolation
Centromere
Comparative embryology
9. The study relating the evolution of new charateristics to changes in the genes controlling development
Adenine
Chromosomes
Founder effect
Evo Devo
10. Impression made from a organism in soft material such as sand or mud.
Mesozoic era
Balanced Polymorphism
Industrial Melanism
Mold
11. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Molecular biology
Cast
Comparative anatomy
Stabilising selection
12. An evolutionary 'branch' and its daughter 'twigs'
Genetic Equilibrium
Homozygous
mutation
Clade
13. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
translation
Monohybrid
Selection pressure
Translocation
14. Consists of all genes - including all the different alleles - that are present in a population
Gene pool
Nucleotide
Species
Chiasma
15. Inherited feature that tends to prevent species from interbreeding with other species
anticodon
Isolating Mechanism
Recessive
Phenotype
16. T or F a codon consist of three nucleotides
true
Heterozygous
Substitution
Speciation
17. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.
Recessive
mutation
Cast
Sex Chromosomes
18. A limb with five digits (fingers)
Pentadactyl limb
Monophyletic
Guanine
Divergent Evolution
19. Three mRNA nucleotides that code for a specific amino acid
amino acid
codon
Niche
tRNA
20. Trait evolves overtime; NO common ancestry
Insertion
Homologous Structures
Crossing over
analogous (Evolution Evidence)
21. A base found in DNA (but not in RNA). This base pairs with Adenine.
chromatin
Population
Selection
Thymine
22. Structure present in an organism however does NOT have a known function. May link organisms with similar vestigial structures. Example: appendix - coccyx bone - whale leg bones.
Mesozoic era
Deletion
Vestigial structure
ribose - phosphate - and a base
23. 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
Chiasma
Parallel Evolution
Paleozoic era
Founder Effect
24. The evolutionary process by which a species becomes better suited to its niche.
Adaptation
Monohybrid Cross
Parallel Evolution
Pentadactyl limb
25. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Testcross
that is complementary to a single strand of DNA
nucleus
Gene pool
26. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
embryological evidence
Comparative Anatomy
Heterozygous
NIche Isolation
27. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
tRNA
genes
Precambrian era
Homologous structures
28. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants
Macroevolution
If you lose one then you will still have one to back you up.
Homozygous
Mesozoic era
29. A DNA double helix is held together in the center by between nitrogenous bases
hydrogen bonds
Translocation
Balanced Polymorphism
Absolute dating
30. Organ no longer serves a function
vestigial (Evolution Evidence)
Macroevolution
Mitosis
deoxyribose and phosphate
31. A distinct population of a species that varies from other populations of the same species.
homologous (Evolution Evidence)
Sub - species
Test Cross
Monophyletic
32. The sum total of an organism's requirements; its way of life
Evo Devo
Niche
Mutation
thymine
33. The number of times an allele appears in a population
Allele Frequency
ribose - phosphate - and a base
Monohybrid
Behavioral (ethological) Isolation
34. Change in a DNA sequence that affects genetic information
Hybrid
Extinction
Chargaff
Mutation
35. 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.
hydrogen bonds
Relative dating
Polyploidy
rRNA
36. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
Speciation
Population
Phenotype
Mechanical (morphological) Isolation
37. The independant evolution of similar traits - starting from a similar ancestral condition
False genes
RNA polymerase
Adenine
Parallel Evolution
38. Periods of little adaptive change
Gametic
Haploid/Monoploid
Stasis
Divergent Evolution
39. Disappearance of a species from all parts of its geographical range
Precambrian era
Sedimentary Rock
Extinction
Selection
40. Group of similar organisms that can breed and produce fertile offspring
vestigial (Evolution Evidence)
Species
Ecological (habitat) Isolation
Monohybrid Cross
41. DNA that is coiled around proteins
Gene pool
Semi - conservative replication
Phyletic Gradualism (anagenesis)
chromatin
42. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Sympatric Speciation
Coevolution
Stabilising
Convergent Evolution
43. Change to a chromosome in which part of the chromosome is repeated
Fossils
Mate Selection
Immigration
Duplication
44. Independent segregation of genes during the formation of gametes
Sequential Evolution
Diploid
rRNA
Independent assortment
45. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Codon
Mendel's traits are now called _____ found on DNA
Translocation
Test Cross
46. Process in which DNA is duplicated
Niche
replication
Directional Selection
Insertion
47. 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
Guanine
Allopatric Speciation
Hershey and Chase
rRNA
48. Is active during transcription
Natural Selection
Behavioral (ethological) Isolation
RNA polymerase
deoxyribose and phosphate
49. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Ice
Geographical Isolation
Cytosine
Homozygous
50. 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.
Gametic
Balanced Polymorphism
Semi - conservative replication
ribose - phosphate - and a base