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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. Trait evolves overtime; NO common ancestry
analogous (Evolution Evidence)
Dominant
Homologous structures
Fossil
2. 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.
Diploid
Bottle neck effect
Vestigial structure
Industrial Melanism
3. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Macroevolution
chromatin
mRNA
transcription
4. Method of replication that implies that each new strand of DNA is half original and half new
Recombination
Semi - conservative replication
Monohybrid Cross
False genes
5. Translation occurs in the...
cytoplasm
Niche
mutation
Ecological (habitat) Isolation
6. When competition causes two closely related species to become more different in regions where their ranges overlap
Character Displacement
Heritable variation
Deletion
mRNA
7. How often a particular gene occurs in the population
Gene frequency
Bottleneck Effect
Stabilising selection
Precambrian era
8. Periods of rapid evolution punctuated by periods of little change
Gene Flow
Punctuated Equilibrium
Fossil
nucleus
9. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles
Medel worked with _____
mutation
Dihybrid
Homologous pair
10. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Crossing over
Stabilising selection
Chromosome mutation
clinC
11. Form of reproductive isolation in which two populations reproduce at different times
Temporal Isolation
embryological evidence
trace fossils
Meiosis
12. Name for oism with one dominant and one recessive allele
nucleotide
Dominant
Heterozygous
homologous (Evolution Evidence)
13. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Hybrid
Test Cross
Comparative Anatomy
Cast
14. Situation in which allele frequencies remain constant
Chromosome mutation
stop codon
Genetic Equilibrium
Divergent Evolution
15. Chromosomes are collections of many
Post -zygotic Mechanisms
genes
Vestigial structure
Mutation
16. DNA is made of...
rRNA
nucleotides
homologous (Evolution Evidence)
Evo Devo
17. The specific location of a gene on a chromosome
NIche Isolation
Homozygote
Locus
Duplication
18. A population partially isolated from other populations of the same species
Translocation
Biogeography
Deme
Migration
19. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
nucleotide
Genome
Guanine
translation
20. Pea plants
Translocation
Analogous Structures (analogies)
Homozygote
Medel worked with _____
21. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.
Temporal Isolation
Chiasma
transcription
trace fossils
22. Natural selection that causes the frequency of a particular allele to move in one direction
Directional Selection
Ecological (habitat) Isolation
Homozygous
Thymine
23. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Sedimentary Rock
Pre -zygotic Mechanisms
Analogous structures
Hybrid
24. 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.
nucleus
Recessive
Hybrid Infertility
Artificial selection
25. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
Environment
stop codon
Mechanical (morphological) Isolation
Bottleneck Effect
26. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
nucleus
Ring Species
Homologous Structures
Dominant
27. Which type of Rna functions as a blue print of the genetic code
Species
Semi - conservative replication
Mutation
mRNA
28. Visual expression of a trait
Phenotype
Mass Extinction
Dihybrid
Homologous structures
29. The evolutionary history/geneology of a group of organisms (a tree thingy)
amino acids
Phylogeny
Geologic Evolution
Cast
30. A change or error in the DNA sequence
Histone
Stabilising selection
Divergent Evolution
mutation
31. The banding pattern of a persons DNA after being cut and run on gel is called
Thymine
Migration
Bottle neck effect
DNA fingerprint
32. Determined the concept of complementary base pairing
three
Test Cross
Post -zygotic Mechanisms
Chargaff
33. 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.
introns
Mate Selection
Deletion
genes
34. Copying the code from DNA onto mRNA
Bottleneck Effect
Speciation
tRNA
transcription
35. 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
Adaptive Radiation
Meiosis
Homozygous
analogous (Evolution Evidence)
36. Three mRNA nucleotides that code for a specific amino acid
codon
Balanced Polymorphism
Genome
homologous (Evolution Evidence)
37. Organ no longer serves a function
Mechanical (morphological) Isolation
GATTACA
amino acids
vestigial (Evolution Evidence)
38. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.
Directional Selection
Relative dating
Heterozygous
NIche Isolation
39. During transcription an RNA molecule is formed
that is complementary to a single strand of DNA
Homologous structures
Chiasma
Chargaff
40. One of the identical rods of a chromosome.
Crossing over
Chromatid
Polyploidy
translation
41. 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
Divergent Evolution
Natural Selection
Guanine
42. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Recombination
hydrogen bonds
Molecular biology
Allopatric Speciation
43. 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.
Codon
amino acids
Relative dating
amino acid
44. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Substitution
Homologous structures
Selection
restriction enzymes - sticky ends
45. DNA that is coiled around proteins
genes
Duplication
chromatin
Natural Selection
46. Another term for pure breeding
Translocation
Homozygous
Heterozygous
Stabilising selection
47. Selection acting against the middle of a range of variation
Dihybrid
nucleus
Disruptive Selection
Hybrid Breakdown
48. A unique combination of traits that are passed down from one generation to another.
Nucleotide
Heritable variation
Monophyletic
gel electrophoresis
49. Selection for the ability to obtain a mate
Sympatric Speciation
amino acid
Sexual Selection
Phenotype
50. Ribosomes are made of...
rRNA
Translocation
Adaptive Radiation
Selection pressure