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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. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic
Hybrid
Precambrian era
geologic time scale
Fossils
2. 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
Gene flow
index fossil
Relative dating
Balanced Polymorphism
3. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Reproductive Isolation
Homologous pair
Dominant
Deletion
4. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Genetic Equilibrium
Natural Selection
Fossils
codon
5. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Chromosome mutation
Hybrid Infertility
Chromosomes
Mitosis
6. The adaptive increase in pigmentation as a result of human - induced pollutants
Gene pool
gel electrophoresis
DNA fingerprint
Industrial Melanism
7. 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
geologic time scale
False RNA
Comparative Anatomy
DNA
8. Predicts the possible outcome of a genetic cross.
Immigration
Evo Devo
Punnett Square
Hominid
9. A pairing where the parent plants differ in only one character.
RNA polymerase
gel electrophoresis
Monohybrid Cross
Stasis
10. Used x ray cyrstallography to create an image of DNA
Independent assortment
Rosalind Franklin
homologous (Evolution Evidence)
Comparative Anatomy
11. Movement of organisms ro of from a population
Industrial Melanism
restriction enzyme
Evolution
Migration
12. A change or error in the DNA sequence
Gene Flow
Thymine
mutation
Character Displacement
13. Copying the code from DNA onto mRNA
Guanine
amino acids
transcription
amino acid
14. T or F If a nucleic acid contain uracil it is DNA
False RNA
Dominant
Deme
Hybrid Inviability
15. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Meiosis
Cenozoic era
Dominant
Genetic Drift
16. Different alleles for a gene
Heterozygote
Species
Dominant
mutation
17. The evolutionary process by which a species becomes better suited to its niche.
Hershey and Chase
Directional Selection
Adaptation
Paleozoic era
18. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants
Mutagen
Mesozoic era
DNA fingerprint
Locus
19. Is found in DNA
Species
homologous (Evolution Evidence)
thymine
geologic time scale
20. Change to a chromosome in which part of the chromosome is repeated
Duplication
Directional Selection
Selection pressure
Gene frequency
21. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Phyletic Gradualism (anagenesis)
Mold
Dominant
Cenozoic era
22. 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.
Migration
Ecological Barrier
Haploid/Monoploid
Dominant
23. 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
Adenine
Mendel's Principle of Segregation
rRNA
Meiosis
24. A type of barrier between species; the species remain isolated because male and femal gametes of the different species cannot fuse - or they die before they unite.
true
Mendel's Principle of Segregation
Gametic
Directional Selection
25. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
Comparative embryology
chromatin
Selection pressure
Common Ancestor
26. Three mRNA nucleotides that code for a specific amino acid
False genes
Isolating Mechanism
Gene frequency
codon
27. Which structure contains anticodons
deoxyribose and phosphate
tRNA
Population
Test Cross
28. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
DNA
Translocation
Directional Selection
Guanine
29. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
nucleotide
codon
Allopatric Speciation
Crossing over
30. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance
rRNA
Natural Selection
Phylogeny
Homologous Structures
31. Synonym for protein; chain of amino acids
Meiosis
polypeptide
Dominant
Organic Evolution
32. 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
Common Ancestor
genes
deoxyribonucleic acid
Sex Chromosomes
33. Translation occurs in the...
Adaptation
restriction enzymes - sticky ends
cytoplasm
Genetic Equilibrium
34. Recognize and cut DNA at specific sequences usually palindromes
body fossils
restriction enzyme
cytosine in DNA is about equal to the percentage of guanine molecules
Endemic
35. What does DNA stand for...
deoxyribonucleic acid
Pre -zygotic Mechanisms
nucleus
Gene mutation
36. A copy of a gene is made during a process called this
Organic Evolution
Convergent Evolution
transcription
Pentadactyl limb
37. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Species
Genetic Drift
Dihybrid Cross
Incomplete Dominance
38. Which type of Rna functions as a blue print of the genetic code
mRNA
Natural Selection
Genetic Drift
Mendel's traits are now called _____ found on DNA
39. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Homologous structures
Ecological (habitat) Isolation
Heritable variation
Gene Flow
40. The enzyme that binds to the promoter region of a gene during transcription is called...
chromatin
Genetic Drift
RNA polymerase
Crossing over
41. What is one benefit for having two strands of DNA?
Artificial selection
chromatin
Adaptation
If you lose one then you will still have one to back you up.
42. Human - like species that existed millions of years ago as witnessed through fossil evidence.
Hominid
Sub - species
Extinction
translation
43. Organ that serves no useful function in an organism
Species
Vestigial organs
Balanced Polymorphism
gel electrophoresis
44. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Mitosis
Analogous structures
Fitness
Test Cross
45. Trait evolves overtime; NO common ancestry
analogous (Evolution Evidence)
trace fossils
three
Immigration
46. All the factors in an organism's surroundings that can potentially affect it
Punctuated Equilibrium
Environment
Natural Selection
Homologous pair
47. A base found in DNA (but not in RNA). This base pairs with Adenine.
Analogous Features
Phenotype
Thymine
Heritable variation
48. Change in a DNA sequence that affects genetic information
Alleles
Common Ancestor
Mutation
Evo Devo
49. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
that is complementary to a single strand of DNA
deoxyribonucleic acid
Monohybrid
Heterozygous
50. An ancestor that two or more descendants have in common
Comparative Embryology
homologous (Evolution Evidence)
amino acid
Common Ancestor