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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. The capacity of an individual of certain genotype to reproduce. It is usually equal to the proportion of the individual's genes in all the genes of the next generation
Igneous and metamorphic rock
Fitness
tRNA
3 nucleotides
2. The preserved remains or traces of an organism that lived in the past
Fossil
3 nucleotides
nucleus
Variation
3. DNA that is coiled around proteins
Hybrid Inviability
Ring Species
chromatin
Species
4. 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.
Haploid/Monoploid
Variation
Comparative Anatomy
Homozygous
5. Used x ray cyrstallography to create an image of DNA
Ring Species
Recessive
Rosalind Franklin
stop codon
6. Independent segregation of genes during the formation of gametes
Independent assortment
Deletion
mRNA
Natural Selection
7. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Analogous structures
Homologous pair
Immigration
Ice
8. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
mRNA
Mutagen
Mechanical (morphological) Isolation
Translocation
9. Disappearance of a species from all parts of its geographical range
Extinction
Speciation
Chiasma
vestigial (Evolution Evidence)
10. DNA is made of...
nucleotides
Chromatid
Semi - conservative replication
Comparative anatomy
11. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Medel worked with _____
ribose - phosphate - and a base
Genetic Equilibrium
Paleozoic era
12. Determined the concept of complementary base pairing
Chargaff
Extinction
Gene mutation
amino acid
13. Group of similar organisms that can breed and produce fertile offspring
Crossing over
Species
mRNA
nucleus
14. Separates DNA by size
Genetic Equilibrium
Bottle neck effect
gel electrophoresis
Selection pressure
15. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
Directional Selection
Environment
Test Cross
Crossing over
16. Form of reproductive isolation in which two populations reproduce at different times
Adenine
Ice
Temporal Isolation
Adaptation
17. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.
Test Cross
index fossil
False RNA
Genotype
18. Synonym for protein; chain of amino acids
Haploid/Monoploid
Stabilising selection
homologous (Evolution Evidence)
polypeptide
19. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
NIche Isolation
Homozygous
Igneous and metamorphic rock
Mass Extinction
20. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
Sequential Evolution
Histone
Sedimentary Rock
Environment
21. Movement of alleles into or out of a population due to the migration of individuals to or from the population
Character Displacement
Ice
Microevolution
Gene flow
22. Innate trait; shared ancestry
Phylogeny
homologous (Evolution Evidence)
Mesozoic era
RNA polymerase
23. The adaptive increase in pigmentation as a result of human - induced pollutants
Mitosis
Industrial Melanism
body fossils
Haploid/Monoploid
24. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
three
Reproductive Isolation
Coevolution
Convergent Evolution
25. Cell division that produces reproductive cells or gamates.This occurs in the gonads (testicle and ovaries in animals) Here the chromosome number is halved the original amount. (each new cell has a haploid number = n) All daughter cells are not geneti
Genotype
Meiosis
rRNA
Incomplete Dominance
26. Change to a chromosome in which part of the chromosome is repeated
Mutagen
Phenotype
Duplication
Mutation
27. The study of the past and present distribution of species.
Autosomes
Genotype
Thymine
Biogeography
28. 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.
Comparative Embryology
Double Helix
Macroevolution
Meiosis
29. The movement of individuals into an area
stop codon
Isolating Mechanism
Immigration
Endemic
30. Change in a DNA sequence that affects genetic information
Testcross
Mutation
Gene Flow
Gene Pool
31. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Crossing over
Incomplete Dominance
Gametic
Immigration
32. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long
DNA
Mitosis
deoxyribose and phosphate
Ecological Barrier
33. 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.
Post -zygotic Mechanisms
Extinction
Relative dating
Chromosomes
34. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants
ribose - phosphate - and a base
Sub - species
Mesozoic era
Selection pressure
35. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
rRNA
Ice
embryological evidence
Analogous Features
36. The backbone of DNA consist of...
Stabilising selection
anticodon
analogous (Evolution Evidence)
deoxyribose and phosphate
37. The individuals choice of which mate they will choose. The choice is dependant on what traits the individual finds attractive. e.g some people will want their mates to be smart or pretty.
Genetic Equilibrium
Mate Selection
embryological evidence
Ecological (habitat) Isolation
38. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together
Crossing over
analogous (Evolution Evidence)
restriction enzymes - sticky ends
Guanine
39. Building block of a nucleic acid (DNA and RNA)
nucleotide
Comparative anatomy
Centromere
Rosalind Franklin
40. A base found in DNA (but not in RNA). This base pairs with Adenine.
Semi - conservative replication
Chiasma
Thymine
Chromosome mutation
41. Two alternative forms of a gene e.g Tall vs Short
Gene pool
Punnett Square
Genotype
Alleles
42. The gradual changes in gene frequencies in a population due to random events
vestigial (Evolution Evidence)
Allele
Genetic Drift
genes
43. One of the identical rods of a chromosome.
Chromatid
Pentadactyl limb
Amber
Adaptation
44. Trait where heterozygous is a blending of two alleles
Thymine
Gene flow
Homologous structures
Genotype
45. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Niche
Geographical Isolation
Genetic Equilibrium
Pre -zygotic Mechanisms
46. Is any chromosome that is not a sex chromosome.
Gene mutation
Industrial Melanism
Autosomes
Gene flow
47. Large - scale evolutionary changes that take place over long periods of time
gel electrophoresis
Macroevolution
Genome
Mold
48. Process in which DNA is duplicated
Natural Selection
replication
Mold
Mechanical (morphological) Isolation
49. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Migration
Semi - conservative replication
mRNA
Diploid
50. Change to a chromosome in which a fragment of the chromosome is removed
Gene Flow
Natural Selection
Mass Extinction
Deletion