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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. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Dominant
Phenotype
its negative charge
Meiosis
2. Dna moves during electrophoresis because of...
Gene mutation
thymine
its negative charge
Monophyletic
3. When zygote does not complete development or is physically weaker than normal
RNA polymerase
Industrial Melanism
Allele Frequency
Hybrid Inviability
4. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.
Variation
Gene Flow
Habitat
Stasis
5. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Punnett Square
Genotype
polypeptide
Testcross
6. 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.
Artificial selection
Chromatid
tRNA
Vestigial structure
7. A taxon originating from and including a single common ancestor
Monophyletic
Ecological (habitat) Isolation
Balanced Polymorphism
Sexual Selection
8. Determined the complete double helical structure of DNA
watson and crick
Founder Effect
Disruptive Selection
Stabilising
9. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
tRNA
mRNA
Deletion
Post -zygotic Mechanisms
10. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
Guanine
Dihybrid Cross
translation
stop codon
11. Transfer RNA; type of RNA that carries amino acids to the ribosome
Dominant
Amber
tRNA
deoxyribonucleic acid
12. All the factors in an organism's surroundings that can potentially affect it
Vestigial organs
Mendel's Principle of Segregation
Adaptive Radiation
Environment
13. A change in the base sequence of DNA; the ultimate source of new alleles
analogous (Evolution Evidence)
geologic time scale
Mutation
clinC
14. 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
mRNA
DNA
Hybrid Inviability
Evolution
15. A copy of a gene is made during a process called this
Chargaff
Evo Devo
transcription
Mendel's traits are now called _____ found on DNA
16. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.
tRNA
Independent assortment
Founder effect
Germ
17. Closely related species occupying different habitats - niches preventing them from interbreeding
Testcross
Ecological Barrier
Guanine
Punctuated Equilibrium
18. Even if the gametes of the two species meet - fertilization does not occur
Gamete Isolation
its negative charge
transcription
Niche
19. Identical alleles for a gene
Deme
Homozygote
Chiasma
Isolating Mechanism
20. Any agent that can cause a change in DNA
Sexual Selection
Dihybrid
Mutagen
restriction enzyme
21. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
Test Cross
Speciation
trace fossils
Molecular biology
22. Two alternative forms of a gene e.g Tall vs Short
Amber
Fossil
Homozygous
Alleles
23. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
Post -zygotic Mechanisms
embryological evidence
Polyploidy
Absolute dating
24. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Bottle neck effect
Natural Selection
Monohybrid
homologous (Evolution Evidence)
25. Ribosomal RNA; type of RNA that makes up part of the ribosome
Genetic Drift
Absolute dating
rRNA
Medel worked with _____
26. During transcription an RNA molecule is formed
Adenine
that is complementary to a single strand of DNA
Hybrid Breakdown
DNA fingerprint
27. Ribosomes are made of...
rRNA
RNA polymerase
Mutagen
Semi - conservative replication
28. The gradual changes in gene frequencies in a population due to random events
Natural Selection
Organic Evolution
Codon
Genetic Drift
29. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character
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30. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Semi - conservative replication
Molecular biology
Fossils
mRNA
31. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Natural Selection
False genes
Hybrid Breakdown
Autosomes
32. Which type of Rna functions as a blue print of the genetic code
Genome
mRNA
Translocation
Stasis
33. Transcrition occurs in the...
Alleles
watson and crick
Hybrid Inviability
nucleus
34. Gradual evolution within a lineage
Sequential Evolution
Test Cross
Guanine
Chromatid
35. 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.
Heritable variation
Chromosome mutation
Cytosine
body fossils
36. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Codon
Behavioral (ethological) Isolation
Hershey and Chase
Chromosomes
37. Another name for a gene
Geographical Isolation
nucleotides
gel electrophoresis
Allele
38. A distinct population of a species that varies from other populations of the same species.
Genotype
Semi - conservative replication
Directional Selection
Sub - species
39. The enzyme that binds to the promoter region of a gene during transcription is called...
RNA polymerase
Ecological (habitat) Isolation
Comparative Anatomy
deoxyribose and phosphate
40. Actual remains of an organism such as bones - teeth - shells - etc.
body fossils
Somatic
Ecological Barrier
Analogous Structures (analogies)
41. Nucleotides that control which amino acids are added during protein synthesis
Allele
Codon
Cenozoic era
Substitution
42. Breeding organisms with specific traits in order to produce offspring with identical traits
Temporal Isolation
Sequential Evolution
chromatin
Artificial selection
43. Is found in DNA
Ring Species
thymine
Germ
Ice
44. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Phyletic Gradualism (anagenesis)
Genetic Equilibrium
Phenotype
Amber
45. Natural selection that causes the frequency of a particular allele to move in one direction
Genetic Drift
Directional Selection
stop codon
Ecological Barrier
46. How many codons are needed to specify three amino acids
Hershey and Chase
three
Guanine
Heterozygous
47. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Gene Pool
Medel worked with _____
Independent assortment
Incomplete Dominance
48. Process by which an organism is slowly turned to stone as the body is replaced by minerals.
Guanine
Mutation
Petrification
transcription
49. Human - like species that existed millions of years ago as witnessed through fossil evidence.
replication
Gene Pool
Nucleotide
Hominid
50. The preserved remains or traces of an organism that lived in the past
Fossil
embryological evidence
Mate Selection
Incomplete Dominance