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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. Periods of rapid evolution punctuated by periods of little change
DNA
Punctuated Equilibrium
Analogous structures
Phenotype
2. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Geographical Isolation
geologic time scale
Hominid
NIche Isolation
3. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
genes
Bottleneck Effect
Double Helix
Reproductive Isolation
4. 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
Genotype
Sex Chromosomes
Adenine
Founder effect
5. How often a form of a gene appears in a gene pool
Allele Frequency
Speciation
nucleus
Homologous pair
6. Any agent that can cause a change in DNA
Parallel Evolution
Incomplete Dominance
Mendel's Principle of Segregation
Mutagen
7. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
embryological evidence
Punctuated Equilibrium
watson and crick
Germ
8. Cross where you cross unknown genotype with a recessive
Sex Chromosomes
Fossils
Test Cross
NIche Isolation
9. Which structure contains anticodons
Dihybrid Cross
tRNA
Phyletic Gradualism (anagenesis)
Alleles
10. Two alternative forms of a gene e.g Tall vs Short
clinC
Double Helix
Alleles
deoxyribose and phosphate
11. Copying the code from DNA onto mRNA
transcription
deoxyribose and phosphate
Histone
Somatic
12. A change in the base sequence of DNA; the ultimate source of new alleles
Gene flow
Mutation
Fitness
gel electrophoresis
13. Nucleotides that control which amino acids are added during protein synthesis
Codon
If you lose one then you will still have one to back you up.
Population
Cast
14. Human - like species that existed millions of years ago as witnessed through fossil evidence.
Comparative anatomy
Heterozygous
its negative charge
Hominid
15. The backbone of DNA consist of...
Dominant
three
Mendel's Principle of Segregation
deoxyribose and phosphate
16. Organ that serves no useful function in an organism
Monohybrid
analogous (Evolution Evidence)
Stasis
Vestigial organs
17. The final product of transcription is...
anticodon
mRNA
Test Cross
Homologous pair
18. Form of reproductive isolation in which tere are differences in species courtship behavior
Behavioral (ethological) Isolation
Homozygote
Test Cross
Stasis
19. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Genetic Equilibrium
Gene Pool
GATTACA
Gene Flow
20. A base found in DNA (but not in RNA). This base pairs with Adenine.
Pre -zygotic Mechanisms
Monohybrid Cross
Niche
Thymine
21. Innate trait; shared ancestry
If you lose one then you will still have one to back you up.
homologous (Evolution Evidence)
Isolating Mechanism
Behavioral (ethological) Isolation
22. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Insertion
Directional Selection
Punnett Square
Bottle neck effect
23. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Disruptive Selection
False genes
Selection
Translocation
24. A pairing where the parent plants differ in only one character.
Monohybrid Cross
Homozygous
Hybrid Infertility
Genetic Drift
25. Process by which one species gives rise to two or more species
Hominid
transcription
Codon
Speciation
26. How many codons are needed to specify three amino acids
Phenotype
Selection pressure
Bottle neck effect
three
27. Three mRNA nucleotides that code for a specific amino acid
codon
Hybrid Infertility
Gene Flow
Variation
28. A codon is made of...
Haploid/Monoploid
3 nucleotides
DNA
restriction enzymes - sticky ends
29. The complete genetic material contained in an individual
Genome
Alleles
mRNA
Centromere
30. 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.
Isolating Mechanism
Adaptation
Absolute dating
Geologic Evolution
31. Because of base pairing in DNA the amount of
cytosine in DNA is about equal to the percentage of guanine molecules
Biogeography
Precambrian era
Common Ancestor
32. T or F If a nucleic acid contain uracil it is DNA
Cenozoic era
False RNA
Sexual Selection
molecular evidence
33. The comparison of the structures of different organisms
Genetic Drift
Mutagen
GATTACA
Comparative anatomy
34. Organ no longer serves a function
clinC
Chromosomes
vestigial (Evolution Evidence)
Evolution
35. Trait where heterozygous is a blending of two alleles
Comparative embryology
Adenine
Genotype
Pre -zygotic Mechanisms
36. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Hybrid Breakdown
Genetic Equilibrium
Gametic
Genotype
37. A change in the base sequence of a gene
Homologous pair
Absolute dating
Gene mutation
three
38. How often a particular gene occurs in the population
NIche Isolation
Clade
Absolute dating
Gene frequency
39. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Phenotype
Mendel's traits are now called _____ found on DNA
Macroevolution
embryological evidence
40. Hybrid is sterile so biologically unfit
ribose - phosphate - and a base
proteins
Dominant
Hybrid Infertility
41. 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
Chargaff
Clade
introns
42. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
gel electrophoresis
Disruptive Selection
Mesozoic era
Monohybrid
43. 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
mRNA
Gene Pool
Adenine
44. Selection for the ability to obtain a mate
Analogous Structures (analogies)
Reproductive Isolation
Sexual Selection
Hybrid Infertility
45. The gradual changes in gene frequencies in a population due to random events
Reproductive Isolation
Genetic Drift
amino acid
Diploid
46. What happens during the process of translation
The cell uses information from mRNA to produce proteins
Environment
index fossil
Allele Frequency
47. The preserved remains or traces of an organism that lived in the past
Dihybrid Cross
Fossil
Gene
Hybrid
48. Ribosomes are made of...
Genetic Drift
rRNA
Mechanical (morphological) Isolation
translation
49. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Fossils
Recombination
Sympatric Speciation
Biogeography
50. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
hydrogen bonds
Migration
Mutation
Cast