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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. Because of base pairing in DNA the amount of
nucleotides
Species
Alleles
cytosine in DNA is about equal to the percentage of guanine molecules
2. How many codons are needed to specify three amino acids
three
Dihybrid Cross
Cast
Relative dating
3. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.
Founder effect
Adaptation
analogous (Evolution Evidence)
Behavioral (ethological) Isolation
4. Dna moves during electrophoresis because of...
Homozygote
Geographical Isolation
its negative charge
Homozygous
5. Pea plants
Absolute dating
Guanine
False genes
Medel worked with _____
6. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
body fossils
stop codon
Sympatric Speciation
Homologous Structures
7. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Independent assortment
Thymine
mRNA
Hybrid Infertility
8. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance
molecular evidence
Natural Selection
Mutagen
Cast
9. Process by which a ribosome uses the code on mRNA to make proteins
Stasis
translation
Founder Effect
Mass Extinction
10. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
stop codon
Sex Chromosomes
Relative dating
Mutation
11. How often a form of a gene appears in a gene pool
restriction enzymes - sticky ends
Allele Frequency
Monophyletic
Double Helix
12. The environmental factors that favour certain phenotypes
hydrogen bonds
Allele Frequency
Crossing over
Selection pressure
13. Found only in that country
Endemic
Microevolution
Gene Pool
Sedimentary Rock
14. Gene
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15. Movement of alleles into or out of a population due to the migration of individuals to or from the population
Gene flow
Petrification
Gametic
Mutation
16. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
trace fossils
Hershey and Chase
Niche
geologic time scale
17. Change to a chromosome in which part of the chromosome is repeated
Allele Frequency
stop codon
Duplication
Ecological Barrier
18. The evolutionary history/geneology of a group of organisms (a tree thingy)
rRNA
Adaptation
Phylogeny
Gamete Isolation
19. Visual expression of a trait
Phenotype
Duplication
Fitness
Fossils
20. 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.
Paleozoic era
Cytosine
Sex Chromosomes
Variation
21. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Bottleneck Effect
Translocation
Nucleotide
introns
22. Structure present in an organism however does NOT have a known function. May link organisms with similar vestigial structures. Example: appendix - coccyx bone - whale leg bones.
mutation
Hybrid Inviability
Vestigial structure
index fossil
23. Separates DNA by size
Centromere
Alleles
trace fossils
gel electrophoresis
24. Translation occurs in the...
cytoplasm
Common Ancestor
Sequential Evolution
Comparative Anatomy
25. Situation in which allele frequencies remain constant
Punnett Square
Genetic Equilibrium
Centromere
Precambrian era
26. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
transcription
Fossils
Analogous structures
Cenozoic era
27. Condition in which an organism has extra sets of chromosomes
mRNA
Polyploidy
Homozygote
chromatin
28. T or F A cloned organism has the same proteins as another organism
Mitosis
RNA polymerase
False genes
Locus
29. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
deoxyribonucleic acid
Crossing over
Cast
Comparative Embryology
30. Transcrition occurs in the...
nucleus
polypeptide
Absolute dating
Mold
31. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Character Displacement
Cenozoic era
Population
Stabilising
32. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Semi - conservative replication
Gene flow
nucleotide
Diploid
33. Organ that serves no useful function in an organism
Gene frequency
Amber
Comparative Embryology
Vestigial organs
34. Periods of little adaptive change
index fossil
Medel worked with _____
Homologous pair
Stasis
35. The capacity of an individual of certain genotype to reproduce. It is usually equal to the proportion of the individual's genes in all the genes of the next generation
Analogous Structures (analogies)
Artificial selection
Clade
Fitness
36. 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
tRNA
Paleozoic era
Clade
37. Trait evolves overtime; NO common ancestry
Semi - conservative replication
Relative dating
Gamete Isolation
analogous (Evolution Evidence)
38. 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
index fossil
NIche Isolation
Coevolution
39. A group of organisms of the same species occupying a given area.
restriction enzymes - sticky ends
Population
Sub - species
Chromosome mutation
40. Even if the gametes of the two species meet - fertilization does not occur
Gamete Isolation
Mold
cytosine in DNA is about equal to the percentage of guanine molecules
Gametic
41. The final product of transcription is...
mRNA
Heterozygous
Test Cross
translation
42. Gradual evolution within a lineage
Mendel's Principle of Segregation
Duplication
Sequential Evolution
Double Helix
43. The type of environment in which an organism or group normally lives or occurs
Gene Pool
RNA polymerase
Heterozygous
Habitat
44. Determined the complete double helical structure of DNA
watson and crick
Coevolution
Stabilising selection
Comparative Embryology
45. A base found in DNA (but not in RNA). This base pairs with Adenine.
Fitness
Thymine
Heterozygous
Ice
46. Chromosomes are collections of many
genes
Vestigial structure
watson and crick
Medel worked with _____
47. The study of the past and present distribution of species.
Habitat
Meiosis
Biogeography
Selection pressure
48. Impression made from a organism in soft material such as sand or mud.
Genome
Selection
Test Cross
Mold
49. Synonym for protein; chain of amino acids
Founder effect
introns
Cenozoic era
polypeptide
50. T or F a codon consist of three nucleotides
Monohybrid Cross
true
tRNA
Gene Flow