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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. Movement of alleles into or out of a population due to the migration of individuals to or from the population
homologous (Evolution Evidence)
Gene flow
Dominant
Medel worked with _____
2. Because of base pairing in DNA the amount of
Haploid/Monoploid
Phenotype
cytosine in DNA is about equal to the percentage of guanine molecules
Stabilising selection
3. 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
GATTACA
Punctuated Equilibrium
Gene
index fossil
4. A unique combination of traits that are passed down from one generation to another.
nucleotide
its negative charge
stop codon
Heritable variation
5. The movement of genes between populations as a result of mating of migration
Medel worked with _____
Environment
Heterozygous
Gene Flow
6. All the factors in an organism's surroundings that can potentially affect it
Recessive
Environment
Independent assortment
anticodon
7. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
hydrogen bonds
Relative dating
Gene Pool
Speciation
8. Closely related species occupying different habitats - niches preventing them from interbreeding
body fossils
Species
Ecological Barrier
Monohybrid Cross
9. Used x ray cyrstallography to create an image of DNA
Rosalind Franklin
chromatin
Population
Dominant
10. Organ that serves no useful function in an organism
Vestigial organs
Phylogeny
Hershey and Chase
Variation
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
Meiosis
Founder Effect
analogous (Evolution Evidence)
Allele Frequency
12. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long
Mold
DNA
Adaptation
tRNA
13. You mate the unknown genotype with an organism showing the recessive trait. If any of the offspring show the recessive trait - the original unknown parent was heterozygous. If no recessive trats show up - the original parent was homozygous.
Double Helix
False RNA
Migration
Test Cross
14. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Mendel's traits are now called _____ found on DNA
Molecular biology
Convergent Evolution
Homologous structures
15. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
tRNA
Diploid
mRNA
Germ
16. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
Founder Effect
Recombination
Monohybrid
restriction enzyme
17. The final product of transcription is...
If you lose one then you will still have one to back you up.
mRNA
that is complementary to a single strand of DNA
Deletion
18. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Analogous structures
Allele
Alleles
If you lose one then you will still have one to back you up.
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
Analogous structures
trace fossils
Balanced Polymorphism
Meiosis
20. Trait evolves overtime; NO common ancestry
Relative dating
Meiosis
analogous (Evolution Evidence)
Chromatid
21. The complete genetic material contained in an individual
Pentadactyl limb
Relative dating
Codon
Genome
22. The movement of individuals into an area
Heterozygous
anticodon
Immigration
Chargaff
23. Innate trait; shared ancestry
nucleotides
homologous (Evolution Evidence)
RNA polymerase
Temporal Isolation
24. A change or error in the DNA sequence
Hybrid
mutation
restriction enzyme
Fossil
25. Dna moves during electrophoresis because of...
Homologous Structures
watson and crick
Histone
its negative charge
26. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
Convergent Evolution
tRNA
Mendel's traits are now called _____ found on DNA
Gene frequency
27. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Environment
Phenotype
Ice
Amber
28. An episode of large - scale extinction affecting many different groups of organisms within a short period of time
Mitosis
Cytosine
Punctuated Equilibrium
Mass Extinction
29. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Comparative Embryology
Rosalind Franklin
gel electrophoresis
Ice
30. Predicts the possible outcome of a genetic cross.
Punnett Square
Autosomes
Thymine
anticodon
31. Actual remains of an organism such as bones - teeth - shells - etc.
Bottle neck effect
Geologic Evolution
body fossils
Speciation
32. Consists of all genes - including all the different alleles - that are present in a population
its negative charge
Geographical Isolation
Gene pool
Duplication
33. Geologic period that followed the Precambrian;means 'ancient life' - early life (570-286 million years ago); single cell organisms - shells - mollusks - rise of first vertebrates - rise of land plants - amphibians - insects - seed plants - and trees
Analogous Features
Mendel's traits are now called _____ found on DNA
Paleozoic era
Founder Effect
34. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
mRNA
Behavioral (ethological) Isolation
Bottleneck Effect
transcription
35. The sum total of an organism's requirements; its way of life
geologic time scale
watson and crick
Rosalind Franklin
Niche
36. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Adaptation
rRNA
trace fossils
Homologous structures
37. The evolutionary process by which a species becomes better suited to its niche.
Homologous Structures
Comparative Anatomy
Adaptation
Species
38. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Guanine
Dominant
Chromosomes
Phenotype
39. Process by which a ribosome uses the code on mRNA to make proteins
Mechanical (morphological) Isolation
translation
Sequential Evolution
Relative dating
40. The region of the chromosome that holds the two sister chromatids together during mitosis
Mold
Sequential Evolution
Mendel's Principle of Segregation
Centromere
41. Gene
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42. Embryos of similar organisms have very similar early development indicating similar DNA at work
Comparative anatomy
its negative charge
Comparative Embryology
Behavioral (ethological) Isolation
43. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
molecular evidence
Double Helix
Substitution
Dihybrid Cross
44. Determined the concept of complementary base pairing
Genetic Drift
Genotype
Cenozoic era
Chargaff
45. Natural selection that causes the frequency of a particular allele to move in one direction
Gene mutation
Directional Selection
Cenozoic era
that is complementary to a single strand of DNA
46. The adaptive increase in pigmentation as a result of human - induced pollutants
Industrial Melanism
analogous (Evolution Evidence)
Selection pressure
Phenotype
47. 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.
Migration
rRNA
Mate Selection
replication
48. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Genotype
Deletion
Testcross
stop codon
49. 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.
Heterozygous
Reproductive Isolation
Alleles
Codon
50. Genes contain instructions for assembling
proteins
restriction enzymes - sticky ends
Mendel's Principle of Segregation
Homologous Structures