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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. Natural selection that causes the frequency of a particular allele to move in one direction
Directional Selection
Test Cross
Sexual Selection
Alleles
2. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Evo Devo
Bottle neck effect
Industrial Melanism
transcription
3. Innate trait; shared ancestry
Mass Extinction
Ice
replication
homologous (Evolution Evidence)
4. 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.
Molecular biology
Double Helix
nucleotides
Genetic Equilibrium
5. 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
Mesozoic era
Testcross
Chromosome mutation
index fossil
6. Separation of species or populations so that they cannot interbreed and produce fertile offspring
DNA fingerprint
Reproductive Isolation
Medel worked with _____
Phenotype
7. Another term for pure breeding
Deme
Homozygous
Igneous and metamorphic rock
mutation
8. During transcription an RNA molecule is formed
Stabilising
Character Displacement
Precambrian era
that is complementary to a single strand of DNA
9. 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.
Mitosis
Punnett Square
Homozygous
Hybrid
10. What is one benefit for having two strands of DNA?
Environment
Gene mutation
If you lose one then you will still have one to back you up.
Vestigial structure
11. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Stabilising selection
Geologic Evolution
Cast
Amber
12. Gradual evolution within a lineage
Cast
Sequential Evolution
Analogous Structures (analogies)
Geologic Evolution
13. Cross where you cross unknown genotype with a recessive
Mesozoic era
Dihybrid Cross
homologous (Evolution Evidence)
Test Cross
14. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry
Analogous Structures (analogies)
body fossils
Mass Extinction
deoxyribonucleic acid
15. T or F If a nucleic acid contain uracil it is DNA
Genotype
Natural Selection
False RNA
Analogous Features
16. Recognize and cut DNA at specific sequences usually palindromes
restriction enzyme
Ring Species
Variation
mutation
17. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
molecular evidence
Germ
Testcross
Extinction
18. The adaptive increase in pigmentation as a result of human - induced pollutants
Gene
Ecological Barrier
Industrial Melanism
Semi - conservative replication
19. Used x ray cyrstallography to create an image of DNA
Double Helix
Rosalind Franklin
Natural Selection
Mutation
20. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
NIche Isolation
Gene
If you lose one then you will still have one to back you up.
Insertion
21. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Convergent Evolution
Adaptation
Punnett Square
Heterozygous
22. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
Haploid/Monoploid
Behavioral (ethological) Isolation
deoxyribonucleic acid
Reproductive Isolation
23. 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.
index fossil
Temporal Isolation
Heterozygous
Natural Selection
24. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together
Allele Frequency
Disruptive Selection
restriction enzymes - sticky ends
Sexual Selection
25. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Adaptation
Amber
Igneous and metamorphic rock
chromatin
26. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
homologous (Evolution Evidence)
Molecular biology
Balanced Polymorphism
Chromosomes
27. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Incomplete Dominance
Biogeography
Absolute dating
False RNA
28. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character
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29. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
Mutation
true
GATTACA
Bottleneck Effect
30. How many codons are needed to specify three amino acids
Habitat
Mesozoic era
Niche
three
31. A limb with five digits (fingers)
Gamete Isolation
Pentadactyl limb
Punnett Square
Sexual Selection
32. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Post -zygotic Mechanisms
Ring Species
Hybrid
Macroevolution
33. Process by which one species gives rise to two or more species
Speciation
Hershey and Chase
Mutation
three
34. T or F a codon consist of three nucleotides
true
Adenine
Amber
Geologic Evolution
35. How often a particular gene occurs in the population
Ecological Barrier
Allele Frequency
Gene Flow
Gene frequency
36. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Mutation
Guanine
Dominant
mRNA
37. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells
Environment
Histone
The cell uses information from mRNA to produce proteins
Independent assortment
38. A copy of a gene is made during a process called this
Gene flow
Cast
Natural Selection
transcription
39. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
trace fossils
Autosomes
Mate Selection
Comparative anatomy
40. When competition causes two closely related species to become more different in regions where their ranges overlap
amino acids
Mutation
Character Displacement
three
41. Impression made from a organism in soft material such as sand or mud.
Mold
Fossils
Nucleotide
Rosalind Franklin
42. The sum total of an organism's requirements; its way of life
Paleozoic era
Niche
The cell uses information from mRNA to produce proteins
Comparative embryology
43. A codon is made of...
anticodon
3 nucleotides
chromatin
Mendel's traits are now called _____ found on DNA
44. 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.
Monohybrid Cross
Mitosis
Fossil
transcription
45. 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
Genotype
Pentadactyl limb
introns
46. 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
Cytosine
restriction enzymes - sticky ends
Bottleneck Effect
47. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Genetic Equilibrium
Phyletic Gradualism (anagenesis)
Nucleotide
Dihybrid
48. Group of similar organisms that can breed and produce fertile offspring
nucleotide
Hybrid Inviability
Species
Mutagen
49. Genes contain instructions for assembling
Allele Frequency
Paleozoic era
Relative dating
proteins
50. The specific location of a gene on a chromosome
Semi - conservative replication
Gene mutation
Heterozygous
Locus