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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. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.
Ecological Barrier
nucleus
Gene
Evo Devo
2. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.
Histone
Species
Relative dating
Clade
3. Method of replication that implies that each new strand of DNA is half original and half new
Mendel's traits are now called _____ found on DNA
Mutagen
Semi - conservative replication
Gene frequency
4. Recognize and cut DNA at specific sequences usually palindromes
Genetic Drift
Sympatric Speciation
restriction enzyme
Adaptive Radiation
5. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Heterozygous
mRNA
Genetic Drift
Punnett Square
6. Determined the complete double helical structure of DNA
watson and crick
index fossil
Genome
Mechanical (morphological) Isolation
7. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
Founder effect
watson and crick
stop codon
Phenotype
8. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Mold
Hybrid
Incomplete Dominance
stop codon
9. How often a form of a gene appears in a gene pool
Monohybrid
Cenozoic era
nucleotide
Allele Frequency
10. A distinct population of a species that varies from other populations of the same species.
Sub - species
gel electrophoresis
Heterozygous
Relative dating
11. 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
Test Cross
nucleus
gel electrophoresis
Meiosis
12. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
GATTACA
Adaptation
Genetic Equilibrium
Analogous structures
13. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Hybrid Breakdown
Ice
Phyletic Gradualism (anagenesis)
Germ
14. Independent segregation of genes during the formation of gametes
Disruptive Selection
Independent assortment
Genetic Drift
Founder Effect
15. Separates DNA by size
Histone
Chromosome mutation
Genotype
gel electrophoresis
16. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Chargaff
Gene flow
Gametic
Amber
17. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
Mitosis
Divergent Evolution
Hybrid Breakdown
trace fossils
18. Found only in that country
Genetic Equilibrium
Endemic
Ring Species
mutation
19. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
Balanced Polymorphism
Bottle neck effect
Cenozoic era
Genetic Drift
20. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful
Post -zygotic Mechanisms
Stabilising
Habitat
Sympatric Speciation
21. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Deletion
Habitat
Fitness
Stabilising selection
22. All the factors in an organism's surroundings that can potentially affect it
Hybrid Inviability
Bottleneck Effect
Environment
Amber
23. Organ no longer serves a function
Common Ancestor
Disruptive Selection
vestigial (Evolution Evidence)
Gene Pool
24. How many codons are needed to specify three amino acids
Petrification
Polyploidy
GATTACA
three
25. Two alternative forms of a gene e.g Tall vs Short
Habitat
Fitness
Alleles
Convergent Evolution
26. Change to a chromosome in which a fragment of the chromosome is removed
Sympatric Speciation
Deletion
embryological evidence
Dominant
27. A DNA double helix is held together in the center by between nitrogenous bases
hydrogen bonds
Reproductive Isolation
Natural Selection
Cenozoic era
28. 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.
Double Helix
cytosine in DNA is about equal to the percentage of guanine molecules
Test Cross
Founder effect
29. Copying the code from DNA onto mRNA
transcription
Dihybrid Cross
homologous (Evolution Evidence)
Homologous Structures
30. The movement of individuals into an area
Allele
Mechanical (morphological) Isolation
Immigration
Chromosome mutation
31. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Monohybrid
Cast
Ecological (habitat) Isolation
Evo Devo
32. Change to a chromosome in which part of the chromosome is repeated
Directional Selection
Evolution
Gene flow
Duplication
33. Process by which one species gives rise to two or more species
nucleotide
Speciation
translation
Adenine
34. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Nucleotide
Cenozoic era
Guanine
mRNA
35. 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
Allele Frequency
Vestigial structure
Parallel Evolution
36. 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.
Homologous Structures
Nucleotide
Igneous and metamorphic rock
stop codon
37. Group of individuals of the same species that live in the same area
Punctuated Equilibrium
embryological evidence
Genotype
Population
38. A mutation in which one nucleotide is replaced by another nucleotide
Mass Extinction
Substitution
Phylogeny
its negative charge
39. Proteins are made of...
rRNA
RNA polymerase
amino acids
translation
40. The complete genetic material contained in an individual
Adenine
Genome
Allele Frequency
Testcross
41. The number of times an allele appears in a population
gel electrophoresis
Recessive
Allele Frequency
Founder Effect
42. 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.
Relative dating
False RNA
Extinction
Homologous pair
43. The type of environment in which an organism or group normally lives or occurs
Habitat
genes
vestigial (Evolution Evidence)
Recessive
44. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Migration
Cenozoic era
Translocation
Sequential Evolution
45. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Directional Selection
Bottle neck effect
Precambrian era
chromatin
46. Mating of 2 oism that differ in 2 characters
Dihybrid Cross
Fitness
Chromosome mutation
Ecological (habitat) Isolation
47. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Absolute dating
Alleles
Bottleneck Effect
Phenotype
48. A combining of genes or characters different from what they were in the parents
Sequential Evolution
Recombination
Gametic
Sympatric Speciation
49. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.
mRNA
Absolute dating
Testcross
Fossil
50. A taxon originating from and including a single common ancestor
Coevolution
Substitution
Punnett Square
Monophyletic