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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. A population partially isolated from other populations of the same species
Deme
trace fossils
Homozygous
Artificial selection
2. Which structure contains anticodons
Hybrid Inviability
amino acid
tRNA
mutation
3. Condition in which an organism has extra sets of chromosomes
Cast
Dihybrid
Polyploidy
Homozygous
4. Synonym for protein; chain of amino acids
Gametic
Analogous Features
polypeptide
Punnett Square
5. Building block of a nucleic acid (DNA and RNA)
nucleotide
Igneous and metamorphic rock
Gene pool
Sequential Evolution
6. Innate trait; shared ancestry
Phyletic Gradualism (anagenesis)
Gametic
codon
homologous (Evolution Evidence)
7. The enzyme that binds to the promoter region of a gene during transcription is called...
Gene frequency
RNA polymerase
body fossils
Guanine
8. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Allele Frequency
RNA polymerase
Selection
gel electrophoresis
9. Organ no longer serves a function
Monohybrid Cross
Amber
vestigial (Evolution Evidence)
Ecological (habitat) Isolation
10. Group of individuals of the same species that live in the same area
proteins
Ecological Barrier
Population
nucleus
11. A combining of genes or characters different from what they were in the parents
mutation
Recombination
Dihybrid Cross
Sympatric Speciation
12. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Bottle neck effect
Cenozoic era
anticodon
Species
13. The adaptive increase in pigmentation as a result of human - induced pollutants
Adaptation
Industrial Melanism
translation
Monohybrid
14. Found only in that country
Endemic
Homozygous
Ecological (habitat) Isolation
Comparative embryology
15. The number of times an allele appears in a population
Allele Frequency
Amber
embryological evidence
Thymine
16. Hybrid is sterile so biologically unfit
NIche Isolation
tRNA
watson and crick
Hybrid Infertility
17. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Sympatric Speciation
3 nucleotides
index fossil
Homologous structures
18. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Stasis
Migration
Founder effect
Nucleotide
19. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
NIche Isolation
Adaptation
chromatin
Homozygous
20. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
Comparative embryology
Population
Codon
Mendel's Principle of Segregation
21. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Thymine
Chargaff
deoxyribose and phosphate
Phenotype
22. Independent segregation of genes during the formation of gametes
Hominid
Independent assortment
Adaptive Radiation
Gene mutation
23. Transcrition occurs in the...
nucleus
Heritable variation
Translocation
Histone
24. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
tRNA
Balanced Polymorphism
ribose - phosphate - and a base
Homozygote
25. The comparison of the structures of different organisms
Population
Gene mutation
Coevolution
Comparative anatomy
26. 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
tRNA
Analogous Features
Meiosis
DNA
27. 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.
polypeptide
Chromosome mutation
Post -zygotic Mechanisms
mRNA
28. The environmental factors that favour certain phenotypes
translation
Hybrid Infertility
Histone
Selection pressure
29. Determined the concept of complementary base pairing
Autosomes
Chargaff
restriction enzyme
Sex Chromosomes
30. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
index fossil
Balanced Polymorphism
Paleozoic era
Mutation
31. The evolutionary history/geneology of a group of organisms (a tree thingy)
index fossil
cytosine in DNA is about equal to the percentage of guanine molecules
Phylogeny
Vestigial organs
32. Recognize and cut DNA at specific sequences usually palindromes
Mass Extinction
Organic Evolution
restriction enzyme
Population
33. Any agent that can cause a change in DNA
Histone
Mutagen
Analogous structures
Mass Extinction
34. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.
Mutagen
Variation
cytoplasm
Mutation
35. Dna moves during electrophoresis because of...
Mendel's traits are now called _____ found on DNA
Environment
its negative charge
polypeptide
36. The study of the past and present distribution of species.
Gametic
rRNA
Gene Pool
Biogeography
37. Because of base pairing in DNA the amount of
cytosine in DNA is about equal to the percentage of guanine molecules
Vestigial organs
Gene mutation
Vestigial structure
38. Identical alleles for a gene
Heterozygote
Homozygote
Extinction
Mutation
39. T or F a codon consist of three nucleotides
Ecological (habitat) Isolation
true
Deletion
Gametic
40. Is any chromosome that is not a sex chromosome.
Artificial selection
Ecological (habitat) Isolation
Hybrid
Autosomes
41. Natural selection that causes the frequency of a particular allele to move in one direction
Directional Selection
Allopatric Speciation
Convergent Evolution
Cast
42. A group of organisms of the same species occupying a given area.
Sexual Selection
Population
Heterozygote
DNA
43. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Pentadactyl limb
Parallel Evolution
Allele Frequency
Ice
44. 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
thymine
Geographical Isolation
Chromatid
45. Proteins are made of...
amino acids
embryological evidence
Fitness
stop codon
46. A limb with five digits (fingers)
Mendel's Principle of Segregation
Niche
Gene Flow
Pentadactyl limb
47. 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.
Insertion
Dominant
Hominid
Recessive
48. A pairing where the parent plants differ in only one character.
Monohybrid Cross
Deme
Chargaff
Common Ancestor
49. Translation occurs in the...
cytoplasm
Bottleneck Effect
Absolute dating
proteins
50. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Hybrid
Speciation
Comparative anatomy
deoxyribose and phosphate