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Test your basic knowledge |
CSET Genetics And Evolution
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Subjects
:
cset
,
science
,
genetics
Instructions:
Answer 50 questions in 15 minutes.
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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. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
geologic time scale
Gene flow
Sedimentary Rock
Monohybrid Cross
2. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Nucleotide
Geographical Isolation
Ecological Barrier
Cast
3. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
chromatin
Chromatid
Monohybrid
Gamete Isolation
4. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.
body fossils
Homologous pair
mutation
Chiasma
5. Translation occurs in the...
homologous (Evolution Evidence)
Homologous structures
Geologic Evolution
cytoplasm
6. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Incomplete Dominance
Mutagen
analogous (Evolution Evidence)
Comparative embryology
7. The enzyme that binds to the promoter region of a gene during transcription is called...
Incomplete Dominance
replication
geologic time scale
RNA polymerase
8. The final product of transcription is...
Gene pool
Homologous Structures
mRNA
Character Displacement
9. Evolution resulting from small specific genetic changes that can lead to a new subspecies
Analogous Features
Microevolution
Allopatric Speciation
Fossil
10. Change in allele frequencies as a result of the migration of a small subgroup of a population
Founder Effect
Gene
amino acid
If you lose one then you will still have one to back you up.
11. The evolutionary history/geneology of a group of organisms (a tree thingy)
tRNA
Phylogeny
Evolution
deoxyribose and phosphate
12. Found only in that country
Endemic
Meiosis
Post -zygotic Mechanisms
Chiasma
13. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Extinction
If you lose one then you will still have one to back you up.
Genetic Equilibrium
Character Displacement
14. 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.
Monohybrid
Haploid/Monoploid
nucleotides
Homozygous
15. 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.
three
Igneous and metamorphic rock
Guanine
Test Cross
16. When competition causes two closely related species to become more different in regions where their ranges overlap
Character Displacement
transcription
Stasis
Chromatid
17. 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.
Comparative embryology
Test Cross
Hominid
true
18. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
Testcross
Gametic
Artificial selection
molecular evidence
19. Determined the concept of complementary base pairing
Ecological Barrier
Molecular biology
Immigration
Chargaff
20. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long
DNA
Geologic Evolution
Insertion
Centromere
21. A unique combination of traits that are passed down from one generation to another.
Speciation
deoxyribonucleic acid
Heritable variation
mutation
22. Which structure contains anticodons
rRNA
Analogous Features
tRNA
Comparative Embryology
23. 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.
Founder Effect
Mitosis
Heterozygous
Stabilising selection
24. Ribosomal RNA; type of RNA that makes up part of the ribosome
rRNA
Somatic
gel electrophoresis
Mass Extinction
25. 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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26. 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.
Hershey and Chase
3 nucleotides
Environment
Gametic
27. Two alternative forms of a gene e.g Tall vs Short
translation
Autosomes
Diploid
Alleles
28. Consists of all genes - including all the different alleles - that are present in a population
Homozygous
genes
Gene pool
Parallel Evolution
29. Copying the code from DNA onto mRNA
transcription
Mutagen
Comparative Anatomy
hydrogen bonds
30. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Geographical Isolation
Independent assortment
Ice
Character Displacement
31. The gradual changes in gene frequencies in a population due to random events
Hybrid Inviability
Genetic Drift
Analogous Structures (analogies)
Adaptive Radiation
32. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related
molecular evidence
anticodon
Divergent Evolution
Genetic Drift
33. A change or error in the DNA sequence
Rosalind Franklin
mutation
Organic Evolution
Fossil
34. Proteins are made of...
thymine
Diploid
amino acids
Locus
35. 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.
Post -zygotic Mechanisms
Ring Species
Founder effect
Hybrid Breakdown
36. Even if the gametes of the two species meet - fertilization does not occur
mRNA
Gamete Isolation
Vestigial structure
Duplication
37. One of the identical rods of a chromosome.
Chargaff
Biogeography
Dihybrid Cross
Chromatid
38. T or F a codon consist of three nucleotides
deoxyribonucleic acid
Comparative Anatomy
rRNA
true
39. Another term for pure breeding
body fossils
Homozygous
Meiosis
polypeptide
40. Form of reproductive isolation in which two populations reproduce at different times
Temporal Isolation
rRNA
Gene Flow
Crossing over
41. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Coevolution
Dihybrid
homologous (Evolution Evidence)
Adenine
42. Nucleotides that control which amino acids are added during protein synthesis
introns
Codon
Post -zygotic Mechanisms
Speciation
43. A trait that masks the expression of another trait
Analogous structures
Dominant
Semi - conservative replication
DNA fingerprint
44. Which type of Rna functions as a blue print of the genetic code
Natural Selection
mRNA
nucleus
Comparative Anatomy
45. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
Homozygous
ribose - phosphate - and a base
gel electrophoresis
tRNA
46. A body cell
body fossils
Somatic
Locus
nucleotides
47. The study relating the evolution of new charateristics to changes in the genes controlling development
Relative dating
Evo Devo
Mitosis
Comparative embryology
48. 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
3 nucleotides
Selection pressure
cytosine in DNA is about equal to the percentage of guanine molecules
Natural Selection
49. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
Hybrid Infertility
amino acid
GATTACA
nucleus
50. Used x ray cyrstallography to create an image of DNA
Rosalind Franklin
restriction enzymes - sticky ends
Post -zygotic Mechanisms
Vestigial organs
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