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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. Genes contain instructions for assembling
Allele Frequency
proteins
Sub - species
Population
2. A geographic gradient in the extent to which a character is developed in a species
Hybrid Inviability
clinC
Centromere
Heterozygote
3. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
body fossils
Parallel Evolution
Molecular biology
introns
4. The type of environment in which an organism or group normally lives or occurs
embryological evidence
Adaptation
mRNA
Habitat
5. Process by which an organism is slowly turned to stone as the body is replaced by minerals.
amino acids
Amber
Petrification
Phylogeny
6. 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.
Igneous and metamorphic rock
Mold
Population
Gene Pool
7. A taxon originating from and including a single common ancestor
Polyploidy
Monophyletic
Mass Extinction
Analogous structures
8. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
watson and crick
Monohybrid
Extinction
9. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Phylogeny
Chiasma
Cast
restriction enzyme
10. Transcrition occurs in the...
nucleus
introns
amino acids
Nucleotide
11. Change to a chromosome in which a fragment of the chromosome is removed
Deletion
Natural Selection
Heterozygous
3 nucleotides
12. Proteins are made of...
its negative charge
geologic time scale
Gene Pool
amino acids
13. The movement of individuals into an area
rRNA
ribose - phosphate - and a base
Immigration
3 nucleotides
14. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Character Displacement
Sedimentary Rock
Stabilising selection
Histone
15. An evolutionary 'branch' and its daughter 'twigs'
Hybrid Inviability
Clade
Crossing over
that is complementary to a single strand of DNA
16. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.
Monohybrid Cross
Mendel's traits are now called _____ found on DNA
Absolute dating
Stabilising selection
17. Which type of Rna functions as a blue print of the genetic code
mRNA
Dihybrid Cross
Pre -zygotic Mechanisms
Extinction
18. 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
vestigial (Evolution Evidence)
Sex Chromosomes
Biogeography
Translocation
19. A change in the base sequence of a gene
Gene flow
Gene mutation
nucleotides
Histone
20. Speciation which does not involve a period of geographical separation
Absolute dating
Sympatric Speciation
polypeptide
Cast
21. The study of the past and present distribution of species.
Alleles
Phenotype
Biogeography
Punnett Square
22. Any agent that can cause a change in DNA
Gametic
Mutagen
Relative dating
proteins
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
Paleozoic era
Evolution
Macroevolution
polypeptide
24. A change in the base sequence of DNA; the ultimate source of new alleles
Mutation
Vestigial structure
Genotype
False genes
25. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Dominant
Cenozoic era
tRNA
Geographical Isolation
26. Separates DNA by size
Genetic Drift
gel electrophoresis
Guanine
transcription
27. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
gel electrophoresis
Mass Extinction
Guanine
transcription
28. These prevent fertilization between species e.g. diff breeding season - mating behaviour
Sedimentary Rock
Pre -zygotic Mechanisms
Chiasma
Meiosis
29. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Clade
molecular evidence
Reproductive Isolation
Translocation
30. The environmental factors that favour certain phenotypes
Selection pressure
Homologous pair
rRNA
body fossils
31. Consists of all genes - including all the different alleles - that are present in a population
Testcross
Disruptive Selection
mRNA
Gene pool
32. T or F a codon consist of three nucleotides
true
Genotype
Comparative Anatomy
replication
33. A base found in DNA (but not in RNA). This base pairs with Adenine.
NIche Isolation
Adaptation
Dihybrid Cross
Thymine
34. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Natural Selection
Semi - conservative replication
Stabilising
Divergent Evolution
35. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
tRNA
Phylogeny
Haploid/Monoploid
molecular evidence
36. Transfer RNA; type of RNA that carries amino acids to the ribosome
Directional Selection
Igneous and metamorphic rock
tRNA
Translocation
37. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
Sequential Evolution
index fossil
stop codon
Deme
38. The region of the chromosome that holds the two sister chromatids together during mitosis
Amber
Meiosis
Centromere
Microevolution
39. Because of base pairing in DNA the amount of
The cell uses information from mRNA to produce proteins
Gene mutation
Balanced Polymorphism
cytosine in DNA is about equal to the percentage of guanine molecules
40. Different alleles for a gene
Molecular biology
Heterozygote
Endemic
Stabilising selection
41. Synonym for protein; chain of amino acids
Stabilising selection
Cast
Stasis
polypeptide
42. Trait evolves overtime; NO common ancestry
Test Cross
Independent assortment
Mold
analogous (Evolution Evidence)
43. Another name for a gene
Allele
Genetic Equilibrium
Microevolution
transcription
44. 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.
Pre -zygotic Mechanisms
Gene
Ice
Sequential Evolution
45. Visual expression of a trait
Comparative embryology
Stabilising selection
Phenotype
Autosomes
46. 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
Genetic Equilibrium
nucleotide
3 nucleotides
47. Organ no longer serves a function
Dominant
Punnett Square
Mendel's traits are now called _____ found on DNA
vestigial (Evolution Evidence)
48. Pea plants
Gene
Mass Extinction
embryological evidence
Medel worked with _____
49. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Analogous Structures (analogies)
Gene pool
mRNA
Germ
50. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Selection
trace fossils
Character Displacement
translation