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CSET Genetics And Evolution
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Subjects
:
cset
,
science
,
genetics
Instructions:
Answer 50 questions in 15 minutes.
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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. The number of times an allele appears in a population
Allele Frequency
Genotype
deoxyribose and phosphate
Cytosine
2. The complete genetic material contained in an individual
Hybrid Inviability
Genome
Relative dating
Ring Species
3. A pairing where the parent plants differ in only one character.
three
Monohybrid Cross
geologic time scale
Centromere
4. A combining of genes or characters different from what they were in the parents
Microevolution
mutation
Mutagen
Recombination
5. Ribosomal RNA; type of RNA that makes up part of the ribosome
rRNA
Precambrian era
Chromatid
Organic Evolution
6. The evolutionary history/geneology of a group of organisms (a tree thingy)
Homozygote
Phylogeny
introns
Clade
7. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Homologous structures
Mate Selection
Amber
Phylogeny
8. A codon is made of...
3 nucleotides
Directional Selection
cytoplasm
Test Cross
9. The evolutionary process by which a species becomes better suited to its niche.
Hybrid
Behavioral (ethological) Isolation
Phenotype
Adaptation
10. Pea plants
Behavioral (ethological) Isolation
Medel worked with _____
Directional Selection
DNA
11. Organ no longer serves a function
Locus
Comparative anatomy
Industrial Melanism
vestigial (Evolution Evidence)
12. Independent segregation of genes during the formation of gametes
Independent assortment
Genetic Equilibrium
rRNA
DNA
13. Group of similar organisms that can breed and produce fertile offspring
proteins
Species
Genetic Equilibrium
Convergent Evolution
14. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.
deoxyribose and phosphate
Recessive
Convergent Evolution
Alleles
15. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Microevolution
Fitness
Cytosine
Substitution
16. A population partially isolated from other populations of the same species
Species
tRNA
Deme
Relative dating
17. 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
Habitat
DNA fingerprint
Species
Mechanical (morphological) Isolation
18. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Directional Selection
Allopatric Speciation
Ecological Barrier
Habitat
19. Proteins are made of...
Migration
amino acids
Gene Flow
Species
20. Selection for the ability to obtain a mate
mRNA
Sexual Selection
Paleozoic era
Stabilising selection
21. Situation in which allele frequencies remain constant
Chromosomes
Genetic Equilibrium
Heterozygous
Codon
22. The adaptive increase in pigmentation as a result of human - induced pollutants
Ice
Industrial Melanism
Mate Selection
Homologous Structures
23. A unique combination of traits that are passed down from one generation to another.
Chromosome mutation
Coevolution
Homologous pair
Heritable variation
24. The final product of transcription is...
Translocation
Molecular biology
nucleus
mRNA
25. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area
Evo Devo
Diploid
Comparative anatomy
Ecological (habitat) Isolation
26. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.
Chromosome mutation
Relative dating
Directional Selection
Adenine
27. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Common Ancestor
Testcross
Genome
homologous (Evolution Evidence)
28. 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
Environment
Speciation
rRNA
index fossil
29. Two alternative forms of a gene e.g Tall vs Short
Medel worked with _____
Cytosine
Alleles
mRNA
30. 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
codon
Analogous Structures (analogies)
Bottle neck effect
Species
31. Selection acting against the middle of a range of variation
Disruptive Selection
Adenine
Codon
Gene Pool
32. Inherited feature that tends to prevent species from interbreeding with other species
restriction enzyme
Directional Selection
Isolating Mechanism
Immigration
33. T or F If a nucleic acid contain uracil it is DNA
chromatin
False RNA
Petrification
Recessive
34. When zygote does not complete development or is physically weaker than normal
Sympatric Speciation
Hybrid Inviability
Chiasma
Stabilising
35. Process by which a ribosome uses the code on mRNA to make proteins
Geographical Isolation
translation
Gamete Isolation
Selection
36. A trait that masks the expression of another trait
codon
Dominant
Phenotype
tRNA
37. A change or error in the DNA sequence
3 nucleotides
Relative dating
mutation
Paleozoic era
38. A DNA double helix is held together in the center by between nitrogenous bases
Mendel's Principle of Segregation
Diploid
DNA fingerprint
hydrogen bonds
39. The individuals choice of which mate they will choose. The choice is dependant on what traits the individual finds attractive. e.g some people will want their mates to be smart or pretty.
Extinction
Testcross
Mate Selection
Population
40. Even if the gametes of the two species meet - fertilization does not occur
The cell uses information from mRNA to produce proteins
Gamete Isolation
Independent assortment
Niche
41. An evolutionary 'branch' and its daughter 'twigs'
Clade
Allele
Heterozygous
Sequential Evolution
42. Copying the code from DNA onto mRNA
Diploid
DNA fingerprint
Vestigial organs
transcription
43. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic
Double Helix
Allele Frequency
geologic time scale
Balanced Polymorphism
44. A change in the base sequence of a gene
Character Displacement
restriction enzyme
Gene mutation
Polyploidy
45. Building block of a protein
amino acid
Migration
cytoplasm
Punctuated Equilibrium
46. Dna moves during electrophoresis because of...
Testcross
nucleotide
Sedimentary Rock
its negative charge
47. Is the evolutionary process whereby a population becomes better suited to its habitat
Adaptation
Vestigial structure
Parallel Evolution
Natural Selection
48. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
molecular evidence
Guanine
Cenozoic era
Pre -zygotic Mechanisms
49. A group of organisms of the same species occupying a given area.
Dominant
embryological evidence
tRNA
Population
50. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
Mechanical (morphological) Isolation
Character Displacement
Germ
Homozygote
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