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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 region of the chromosome that holds the two sister chromatids together during mitosis
geologic time scale
Analogous Structures (analogies)
Centromere
Analogous structures
2. The independant evolution of similar traits - starting from a similar ancestral condition
Stabilising selection
amino acid
Guanine
Parallel Evolution
3. The structure on a tRNA molecule that allows it interact with an mRNA molecule
False genes
Gene mutation
Extinction
anticodon
4. A change in the base sequence of DNA; the ultimate source of new alleles
Molecular biology
RNA polymerase
Chiasma
Mutation
5. The complete genetic material contained in an individual
Diploid
nucleotide
Genome
Mechanical (morphological) Isolation
6. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Testcross
Allopatric Speciation
mRNA
Substitution
7. Proteins are made of...
Translocation
amino acids
trace fossils
Hybrid Breakdown
8. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Convergent Evolution
Homozygote
Coevolution
Hybrid
9. Method of replication that implies that each new strand of DNA is half original and half new
Stasis
restriction enzyme
Semi - conservative replication
Cenozoic era
10. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
Mendel's Principle of Segregation
anticodon
tRNA
Genome
11. Group of individuals of the same species that live in the same area
Phenotype
Histone
Population
Codon
12. Change to a chromosome in which part of the chromosome is repeated
Duplication
Comparative Embryology
that is complementary to a single strand of DNA
False RNA
13. Change in a DNA sequence that affects genetic information
anticodon
Dominant
Mutation
Coevolution
14. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Ice
hydrogen bonds
introns
Ring Species
15. DNA is made of...
nucleotides
Monohybrid
Sedimentary Rock
Phylogeny
16. 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.
Codon
Hybrid
Ring Species
Mate Selection
17. When competition causes two closely related species to become more different in regions where their ranges overlap
Reproductive Isolation
Sedimentary Rock
genes
Character Displacement
18. A limb with five digits (fingers)
Pentadactyl limb
ribose - phosphate - and a base
Precambrian era
Divergent Evolution
19. The environmental factors that favour certain phenotypes
Haploid/Monoploid
Mutation
Convergent Evolution
Selection pressure
20. Genes contain instructions for assembling
proteins
Locus
Hybrid Infertility
Codon
21. Organ that serves no useful function in an organism
Speciation
Vestigial organs
thymine
Genetic Drift
22. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Natural Selection
Phenotype
Population
trace fossils
23. Mating of 2 oism that differ in 2 characters
Dihybrid Cross
Fitness
Evolution
If you lose one then you will still have one to back you up.
24. How many codons are needed to specify three amino acids
Molecular biology
Bottle neck effect
three
Mutation
25. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Hershey and Chase
Incomplete Dominance
Testcross
Environment
26. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
Bottle neck effect
Gene pool
molecular evidence
Sub - species
27. A group of organisms of the same species occupying a given area.
Molecular biology
proteins
hydrogen bonds
Population
28. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Stabilising
polypeptide
Founder effect
Mutation
29. Transfer RNA; type of RNA that carries amino acids to the ribosome
tRNA
Gene flow
Somatic
Test Cross
30. How often a particular gene occurs in the population
Fossils
Medel worked with _____
Gene frequency
Homologous structures
31. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Testcross
Genetic Equilibrium
Amber
Pentadactyl limb
32. Because of base pairing in DNA the amount of
Adaptation
cytosine in DNA is about equal to the percentage of guanine molecules
Evolution
three
33. Selection acting against the middle of a range of variation
Gene Flow
Autosomes
Hybrid Infertility
Disruptive Selection
34. Large - scale evolutionary changes that take place over long periods of time
Homozygous
Macroevolution
Precambrian era
gel electrophoresis
35. Change to a chromosome in which a fragment of the chromosome is removed
Gene mutation
Deletion
Gene pool
Gene
36. An evolutionary 'branch' and its daughter 'twigs'
Divergent Evolution
Crossing over
Clade
cytoplasm
37. 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
Homologous Structures
nucleotide
Species
Polyploidy
38. Used x ray cyrstallography to create an image of DNA
Analogous structures
restriction enzyme
Rosalind Franklin
Mutagen
39. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
GATTACA
Rosalind Franklin
Directional Selection
nucleotide
40. An ancestor that two or more descendants have in common
Speciation
Hybrid
Hybrid Breakdown
Common Ancestor
41. 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.
Macroevolution
Independent assortment
Heterozygous
hydrogen bonds
42. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Molecular biology
Genotype
analogous (Evolution Evidence)
Heterozygous
43. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
Ring Species
Monohybrid Cross
Crossing over
Reproductive Isolation
44. Transcrition occurs in the...
analogous (Evolution Evidence)
Incomplete Dominance
nucleus
Substitution
45. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Monohybrid
Mass Extinction
Genome
Homologous structures
46. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
Phylogeny
Phenotype
mRNA
Mechanical (morphological) Isolation
47. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.
Mold
Incomplete Dominance
Punnett Square
Chromosome mutation
48. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Haploid/Monoploid
Selection
Population
Analogous structures
49. 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
that is complementary to a single strand of DNA
Substitution
Comparative Embryology
50. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Stasis
Punnett Square
Genetic Equilibrium
Natural Selection