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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. The environmental factors that favour certain phenotypes
Selection pressure
Genetic Equilibrium
deoxyribonucleic acid
analogous (Evolution Evidence)
2. The evolutionary process by which a species becomes better suited to its niche.
Heterozygous
Adaptation
Niche
Cast
3. 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.
Mendel's traits are now called _____ found on DNA
Vestigial structure
Centromere
Gene
4. Pea plants
Speciation
restriction enzymes - sticky ends
Medel worked with _____
Industrial Melanism
5. Speciation which does not involve a period of geographical separation
Comparative Embryology
Sympatric Speciation
Hybrid Infertility
watson and crick
6. Evolution of living things - based on evidence from the past and present.
Pre -zygotic Mechanisms
Organic Evolution
Heterozygote
Semi - conservative replication
7. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.
tRNA
trace fossils
Gene
Genetic Equilibrium
8. 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
Stabilising selection
Natural Selection
Gene pool
Homologous Structures
9. Gene
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10. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Guanine
Selection
nucleus
Mechanical (morphological) Isolation
11. 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
molecular evidence
Hominid
Reproductive Isolation
12. A copy of a gene is made during a process called this
Dihybrid
Heterozygous
Sex Chromosomes
transcription
13. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Chargaff
Cenozoic era
Gene pool
Allele Frequency
14. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.
Biogeography
Adaptation
mRNA
Evolution
15. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Environment
Molecular biology
Punnett Square
amino acid
16. Process by which a ribosome uses the code on mRNA to make proteins
Selection
Reproductive Isolation
Genotype
translation
17. Transfer RNA; type of RNA that carries amino acids to the ribosome
true
Genome
amino acids
tRNA
18. 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.
hydrogen bonds
Heterozygous
Paleozoic era
Analogous Structures (analogies)
19. The number of times an allele appears in a population
Allele Frequency
Medel worked with _____
Ice
Gene Flow
20. A change in the base sequence of a gene
Dihybrid Cross
Allele
Gene mutation
translation
21. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
tRNA
Mutation
Coevolution
Directional Selection
22. What does DNA stand for...
Phyletic Gradualism (anagenesis)
Medel worked with _____
restriction enzymes - sticky ends
deoxyribonucleic acid
23. During transcription an RNA molecule is formed
Coevolution
Immigration
that is complementary to a single strand of DNA
Adaptation
24. The final product of transcription is...
Fossil
Directional Selection
mRNA
chromatin
25. A limb with five digits (fingers)
analogous (Evolution Evidence)
Homologous pair
Speciation
Pentadactyl limb
26. Form of reproductive isolation in which two populations reproduce at different times
Igneous and metamorphic rock
Heterozygous
Natural Selection
Temporal Isolation
27. Form of reproductive isolation in which tere are differences in species courtship behavior
Mold
Paleozoic era
Behavioral (ethological) Isolation
Phyletic Gradualism (anagenesis)
28. Actual remains of an organism such as bones - teeth - shells - etc.
Natural Selection
nucleus
Genome
body fossils
29. 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
False genes
Paleozoic era
Mutation
true
30. Impression made from a organism in soft material such as sand or mud.
Histone
Mold
Comparative Embryology
Founder Effect
31. When competition causes two closely related species to become more different in regions where their ranges overlap
Character Displacement
NIche Isolation
Genotype
true
32. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Geologic Evolution
Monophyletic
Recombination
Medel worked with _____
33. 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.
genes
Homozygous
Test Cross
Geologic Evolution
34. Features that are superficially similar but have different modes of development
Analogous Features
Cenozoic era
Niche
NIche Isolation
35. One of the identical rods of a chromosome.
Punnett Square
Chromatid
stop codon
Founder Effect
36. Group of individuals of the same species that live in the same area
Gene flow
Population
Founder effect
Mate Selection
37. The independant evolution of similar traits - starting from a similar ancestral condition
Mutagen
amino acids
its negative charge
Parallel Evolution
38. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Analogous structures
Migration
Organic Evolution
Absolute dating
39. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups
Adaptive Radiation
Mate Selection
Species
deoxyribose and phosphate
40. Trait where heterozygous is a blending of two alleles
Adaptive Radiation
mRNA
Centromere
Genotype
41. The adaptive increase in pigmentation as a result of human - induced pollutants
Industrial Melanism
Monohybrid Cross
Sympatric Speciation
Punctuated Equilibrium
42. T or F a codon consist of three nucleotides
true
Phenotype
Duplication
Chargaff
43. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Pre -zygotic Mechanisms
mRNA
Coevolution
Clade
44. Inherited feature that tends to prevent species from interbreeding with other species
Semi - conservative replication
watson and crick
Isolating Mechanism
Migration
45. The preserved remains or traces of an organism that lived in the past
Fossil
amino acids
Adaptation
Duplication
46. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
Cenozoic era
Haploid/Monoploid
Heterozygous
Recombination
47. Gradual evolution within a lineage
Sequential Evolution
Disruptive Selection
Sub - species
Homologous pair
48. Copying the code from DNA onto mRNA
Gene pool
Evolution
watson and crick
transcription
49. A base found in DNA (but not in RNA). This base pairs with Adenine.
Gene frequency
Coevolution
Microevolution
Thymine
50. 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.
Mitosis
clinC
Divergent Evolution
Extinction