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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. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
Adaptive Radiation
embryological evidence
Comparative anatomy
Habitat
2. Organ no longer serves a function
Adaptation
vestigial (Evolution Evidence)
Selection
Genotype
3. Transcrition occurs in the...
Recombination
Directional Selection
Gametic
nucleus
4. 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
Ice
Gene Pool
Species
body fossils
5. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
RNA polymerase
Phyletic Gradualism (anagenesis)
NIche Isolation
Chromatid
6. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Biogeography
Ice
body fossils
Evolution
7. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Translocation
Analogous Structures (analogies)
Allele
Parallel Evolution
8. Any agent that can cause a change in DNA
introns
Punctuated Equilibrium
Coevolution
Mutagen
9. Gene
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10. The region of the chromosome that holds the two sister chromatids together during mitosis
Testcross
Centromere
Guanine
Homozygous
11. A codon is made of...
Variation
codon
Endemic
3 nucleotides
12. 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.
Mitosis
Gene frequency
Monohybrid
Igneous and metamorphic rock
13. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
mRNA
Germ
Pentadactyl limb
3 nucleotides
14. Because of base pairing in DNA the amount of
restriction enzymes - sticky ends
GATTACA
cytosine in DNA is about equal to the percentage of guanine molecules
mRNA
15. Selection acting against the middle of a range of variation
Semi - conservative replication
Allele
polypeptide
Disruptive Selection
16. How often a form of a gene appears in a gene pool
Fitness
Translocation
Industrial Melanism
Allele Frequency
17. During transcription an RNA molecule is formed
Ecological (habitat) Isolation
Selection pressure
deoxyribose and phosphate
that is complementary to a single strand of DNA
18. Impression made from a organism in soft material such as sand or mud.
its negative charge
Mold
Mutation
Recessive
19. Process by which a ribosome uses the code on mRNA to make proteins
translation
Heterozygous
anticodon
restriction enzyme
20. The preserved remains or traces of an organism that lived in the past
Geographical Isolation
Fossil
nucleotides
Analogous Features
21. Separates DNA by size
gel electrophoresis
transcription
Natural Selection
Igneous and metamorphic rock
22. Transfer RNA; type of RNA that carries amino acids to the ribosome
Punctuated Equilibrium
tRNA
Testcross
Natural Selection
23. Which structure contains anticodons
Alleles
Rosalind Franklin
Mutagen
tRNA
24. Closely related species occupying different habitats - niches preventing them from interbreeding
mRNA
Meiosis
tRNA
Ecological Barrier
25. Which type of Rna functions as a blue print of the genetic code
Gene frequency
clinC
hydrogen bonds
mRNA
26. You mate the unknown genotype with an organism showing the recessive trait. If any of the offspring show the recessive trait - the original unknown parent was heterozygous. If no recessive trats show up - the original parent was homozygous.
analogous (Evolution Evidence)
Precambrian era
Selection pressure
Test Cross
27. When zygote does not complete development or is physically weaker than normal
nucleus
Hybrid Inviability
Stabilising selection
Genetic Equilibrium
28. A population partially isolated from other populations of the same species
RNA polymerase
Ecological Barrier
Deme
3 nucleotides
29. 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.
Homozygous
Chromatid
Sub - species
Amber
30. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
molecular evidence
Amber
Dominant
Vestigial structure
31. Organ that serves no useful function in an organism
Thymine
body fossils
introns
Vestigial organs
32. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Polyploidy
amino acid
hydrogen bonds
Phyletic Gradualism (anagenesis)
33. A change or error in the DNA sequence
Mold
mRNA
Ice
mutation
34. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
Gene mutation
proteins
Mechanical (morphological) Isolation
Coevolution
35. Used radioactive sulfur and radioactive phosphorus to determine that DNA is the genetic material - by demonstrating that it is DNA that is injected by bacteriophages into bacterial cells during infection
Hershey and Chase
Sex Chromosomes
Fossil
Extinction
36. Are noncoding sequences in the gene that are removed from RNA after transcription
introns
translation
Biogeography
Species
37. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
true
molecular evidence
Petrification
GATTACA
38. A pairing where the parent plants differ in only one character.
Punnett Square
Monohybrid Cross
Evo Devo
clinC
39. The specific location of a gene on a chromosome
Parallel Evolution
RNA polymerase
Punnett Square
Locus
40. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Gametic
Biogeography
Bottleneck Effect
Evo Devo
41. A change in the base sequence of DNA; the ultimate source of new alleles
Punnett Square
Phenotype
Hybrid
Mutation
42. A trait that masks the expression of another trait
transcription
Translocation
Gamete Isolation
Dominant
43. Process by which one species gives rise to two or more species
Haploid/Monoploid
Hybrid Infertility
Genetic Drift
Speciation
44. The gradual changes in gene frequencies in a population due to random events
Monohybrid Cross
Genetic Drift
Mutation
Monohybrid
45. Used x ray cyrstallography to create an image of DNA
Gene mutation
Rosalind Franklin
Mutagen
polypeptide
46. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
tRNA
Nucleotide
Homologous Structures
Mechanical (morphological) Isolation
47. 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.
Vestigial structure
Substitution
Gametic
nucleus
48. Different alleles for a gene
Mate Selection
Post -zygotic Mechanisms
nucleotide
Heterozygote
49. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Balanced Polymorphism
Double Helix
Adaptive Radiation
Stabilising
50. Ribosomes are made of...
Locus
transcription
rRNA
Temporal Isolation