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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. An evolutionary 'branch' and its daughter 'twigs'
amino acids
Clade
Migration
Substitution
2. How often a form of a gene appears in a gene pool
Allele Frequency
Dominant
Phenotype
Post -zygotic Mechanisms
3. The sum total of an organism's requirements; its way of life
Duplication
Common Ancestor
Niche
Natural Selection
4. A mutation in which one nucleotide is replaced by another nucleotide
Punnett Square
3 nucleotides
Substitution
Convergent Evolution
5. A pairing where the parent plants differ in only one character.
Semi - conservative replication
Pentadactyl limb
Species
Monohybrid Cross
6. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
stop codon
introns
Homozygous
Divergent Evolution
7. 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
Directional Selection
Analogous Structures (analogies)
Haploid/Monoploid
Gene frequency
8. 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.
Ring Species
Mitosis
polypeptide
tRNA
9. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Dihybrid
Testcross
Igneous and metamorphic rock
Convergent Evolution
10. 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.
Recessive
Mate Selection
Paleozoic era
Genotype
11. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Histone
Fossils
clinC
Mendel's Principle of Segregation
12. Method of replication that implies that each new strand of DNA is half original and half new
Founder effect
Stasis
Semi - conservative replication
Allele Frequency
13. Another name for a gene
Medel worked with _____
Natural Selection
amino acids
Allele
14. Speciation preceded by a period of geographical isolation
Fitness
Allopatric Speciation
tRNA
mRNA
15. Trait where heterozygous is a blending of two alleles
Genotype
Punnett Square
Vestigial structure
thymine
16. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic
its negative charge
geologic time scale
tRNA
Species
17. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Dominant
Incomplete Dominance
tRNA
Phyletic Gradualism (anagenesis)
18. A trait that masks the expression of another trait
Dominant
Monohybrid
geologic time scale
rRNA
19. Transfer RNA; type of RNA that carries amino acids to the ribosome
Incomplete Dominance
Artificial selection
tRNA
Mendel's Principle of Segregation
20. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y
Sex Chromosomes
watson and crick
mutation
Organic Evolution
21. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
Adaptive Radiation
Fossils
Deme
22. 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.
Stabilising selection
Founder effect
Speciation
Biogeography
23. Gene
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24. Movement of alleles into or out of a population due to the migration of individuals to or from the population
Gene flow
Polyploidy
hydrogen bonds
Convergent Evolution
25. Proteins are made of...
molecular evidence
amino acids
genes
Polyploidy
26. DNA is made of...
nucleotides
Monophyletic
Genotype
Selection
27. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
tRNA
that is complementary to a single strand of DNA
Gene Pool
Recessive
28. Impression made from a organism in soft material such as sand or mud.
Homozygote
Bottleneck Effect
Mold
Macroevolution
29. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Migration
codon
Polyploidy
mRNA
30. Cross where you cross unknown genotype with a recessive
If you lose one then you will still have one to back you up.
Test Cross
Monohybrid
Endemic
31. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Phenotype
Genetic Equilibrium
translation
Chromosome mutation
32. Synonym for protein; chain of amino acids
Genetic Equilibrium
Coevolution
polypeptide
index fossil
33. Form of reproductive isolation in which two populations reproduce at different times
Evo Devo
Absolute dating
Temporal Isolation
Thymine
34. A change in the base sequence of DNA; the ultimate source of new alleles
Genotype
Mutation
Homologous pair
Recessive
35. Visual expression of a trait
Phenotype
Gene pool
Genotype
Species
36. The movement of genes between populations as a result of mating of migration
body fossils
Fitness
Behavioral (ethological) Isolation
Gene Flow
37. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Selection
Chromosome mutation
Homologous pair
ribose - phosphate - and a base
38. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Hybrid
Cast
Rosalind Franklin
Chromosome mutation
39. Found only in that country
Hominid
Endemic
Hershey and Chase
Niche
40. Change in a DNA sequence that affects genetic information
Mutation
deoxyribonucleic acid
Heterozygous
Homozygote
41. 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.
Adaptation
Industrial Melanism
Molecular biology
Variation
42. A limb with five digits (fingers)
False genes
Pentadactyl limb
Behavioral (ethological) Isolation
Gene Flow
43. A copy of a gene is made during a process called this
rRNA
Coevolution
transcription
Niche
44. A change in the base sequence of a gene
Behavioral (ethological) Isolation
Somatic
Precambrian era
Gene mutation
45. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.
Chiasma
Sub - species
Heterozygote
Crossing over
46. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Dominant
DNA fingerprint
Guanine
Ecological Barrier
47. A nucleotide of RNA is made of...
Industrial Melanism
Sedimentary Rock
ribose - phosphate - and a base
Stabilising selection
48. Is active during transcription
RNA polymerase
Sub - species
codon
Ecological Barrier
49. Genes contain instructions for assembling
Hershey and Chase
Allele Frequency
proteins
Meiosis
50. Predicts the possible outcome of a genetic cross.
Punnett Square
Chromosome mutation
Homologous structures
DNA fingerprint