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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. Translation occurs in the...
Stabilising selection
cytoplasm
Natural Selection
Speciation
2. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area
Ecological (habitat) Isolation
Dihybrid
Phylogeny
Species
3. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
cytosine in DNA is about equal to the percentage of guanine molecules
Evo Devo
Parallel Evolution
Germ
4. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Comparative anatomy
Geologic Evolution
Directional Selection
Cast
5. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Selection
vestigial (Evolution Evidence)
Mutation
deoxyribonucleic acid
6. Process by which a ribosome uses the code on mRNA to make proteins
Temporal Isolation
Genetic Equilibrium
translation
Homologous Structures
7. Organ that serves no useful function in an organism
polypeptide
Vestigial organs
Mendel's traits are now called _____ found on DNA
Allele Frequency
8. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Analogous structures
Comparative embryology
vestigial (Evolution Evidence)
analogous (Evolution Evidence)
9. Copying the code from DNA onto mRNA
transcription
Gene pool
Sexual Selection
If you lose one then you will still have one to back you up.
10. The sum total of an organism's requirements; its way of life
Histone
Niche
homologous (Evolution Evidence)
body fossils
11. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Geographical Isolation
GATTACA
Isolating Mechanism
Diploid
12. Pea plants
Evolution
Incomplete Dominance
Medel worked with _____
vestigial (Evolution Evidence)
13. The evolutionary history/geneology of a group of organisms (a tree thingy)
vestigial (Evolution Evidence)
Phylogeny
translation
GATTACA
14. Movement of alleles into or out of a population due to the migration of individuals to or from the population
Gene flow
Independent assortment
watson and crick
Dominant
15. A codon is made of...
3 nucleotides
Genetic Equilibrium
Punctuated Equilibrium
Mitosis
16. Determined the complete double helical structure of DNA
Petrification
watson and crick
embryological evidence
vestigial (Evolution Evidence)
17. Periods of little adaptive change
Stasis
Clade
Heritable variation
Mold
18. Another name for a gene
Monohybrid
Genetic Drift
Allele
Hybrid Infertility
19. The specific location of a gene on a chromosome
Habitat
Locus
Cytosine
rRNA
20. Closely related species occupying different habitats - niches preventing them from interbreeding
Ecological Barrier
Mechanical (morphological) Isolation
Sexual Selection
mRNA
21. A mutation in which one nucleotide is replaced by another nucleotide
Hybrid Inviability
molecular evidence
vestigial (Evolution Evidence)
Substitution
22. Disappearance of a species from all parts of its geographical range
Sex Chromosomes
Genotype
Extinction
clinC
23. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
rRNA
Diploid
Sub - species
Post -zygotic Mechanisms
24. DNA that is coiled around proteins
chromatin
that is complementary to a single strand of DNA
Sequential Evolution
Phyletic Gradualism (anagenesis)
25. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Fossils
Genome
Post -zygotic Mechanisms
clinC
26. A geographic gradient in the extent to which a character is developed in a species
clinC
stop codon
Hybrid Breakdown
Vestigial organs
27. 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.
False RNA
codon
nucleus
Recessive
28. The number of times an allele appears in a population
Dihybrid Cross
Selection pressure
vestigial (Evolution Evidence)
Allele Frequency
29. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Temporal Isolation
polypeptide
Precambrian era
Comparative embryology
30. A group of organisms of the same species occupying a given area.
Fitness
Population
Haploid/Monoploid
molecular evidence
31. Is a trait that is more expressed than another trait. Is written in capital letters for Genotype. E.g Tall genotype is TT or Tt where T is the allele for tall trait and t is the trait for small. T will be expressed more.
Dominant
anticodon
tRNA
Adenine
32. Innate trait; shared ancestry
Gene frequency
homologous (Evolution Evidence)
Sub - species
Natural Selection
33. Because of base pairing in DNA the amount of
stop codon
cytosine in DNA is about equal to the percentage of guanine molecules
Dominant
Insertion
34. 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.
Niche
Heritable variation
Analogous structures
Double Helix
35. A trait that masks the expression of another trait
Bottle neck effect
body fossils
Dominant
Punnett Square
36. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
Species
Sedimentary Rock
molecular evidence
mutation
37. 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.
deoxyribonucleic acid
Vestigial structure
Character Displacement
Heterozygous
38. Process by which an organism is slowly turned to stone as the body is replaced by minerals.
Germ
Temporal Isolation
Petrification
Mutagen
39. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
GATTACA
DNA
Chromosome mutation
translation
40. A DNA double helix is held together in the center by between nitrogenous bases
hydrogen bonds
Hybrid Breakdown
Environment
Hershey and Chase
41. Group of similar organisms that can breed and produce fertile offspring
Analogous Structures (analogies)
Species
Sex Chromosomes
homologous (Evolution Evidence)
42. Change in allele frequencies as a result of the migration of a small subgroup of a population
Homologous Structures
ribose - phosphate - and a base
Founder Effect
Reproductive Isolation
43. Actual remains of an organism such as bones - teeth - shells - etc.
Ecological (habitat) Isolation
deoxyribose and phosphate
body fossils
Dihybrid Cross
44. Process by which one species gives rise to two or more species
Character Displacement
Mutation
Heritable variation
Speciation
45. Is found in DNA
Precambrian era
tRNA
thymine
Translocation
46. 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.
Niche
Mitosis
Homologous Structures
rRNA
47. Is active during transcription
Punctuated Equilibrium
Temporal Isolation
Analogous Features
RNA polymerase
48. What is one benefit for having two strands of DNA?
If you lose one then you will still have one to back you up.
Allele Frequency
Endemic
Allele Frequency
49. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Bottleneck Effect
Punctuated Equilibrium
Hominid
Alleles
50. 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
Phyletic Gradualism (anagenesis)
Coevolution
Variation
Sex Chromosomes