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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 movement of genes between populations as a result of mating of migration
3 nucleotides
Gene Flow
Biogeography
Nucleotide
2. The gradual changes in gene frequencies in a population due to random events
Analogous structures
that is complementary to a single strand of DNA
Alleles
Genetic Drift
3. Used radioactive sulfur and radioactive phosphorus to determine that DNA is the genetic material - by demonstrating that it is DNA that is injected by bacteriophages into bacterial cells during infection
Amber
restriction enzymes - sticky ends
Hershey and Chase
Relative dating
4. A mutation in which one nucleotide is replaced by another nucleotide
GATTACA
Adaptation
Substitution
index fossil
5. Mating of 2 oism that differ in 2 characters
Dihybrid Cross
Heterozygous
Mutagen
Founder effect
6. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Ring Species
Gene Flow
translation
restriction enzyme
7. Separation of species or populations so that they cannot interbreed and produce fertile offspring
restriction enzyme
Heterozygous
Reproductive Isolation
geologic time scale
8. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Homologous structures
3 nucleotides
Dominant
rRNA
9. The final product of transcription is...
rRNA
Gene flow
embryological evidence
mRNA
10. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Recombination
Deme
Chromosomes
polypeptide
11. An evolutionary 'branch' and its daughter 'twigs'
amino acids
If you lose one then you will still have one to back you up.
clinC
Clade
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
DNA
Hershey and Chase
RNA polymerase
Hybrid Inviability
13. During transcription an RNA molecule is formed
that is complementary to a single strand of DNA
GATTACA
codon
three
14. shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.
Double Helix
Directional Selection
If you lose one then you will still have one to back you up.
Isolating Mechanism
15. Is the evolutionary process whereby a population becomes better suited to its habitat
Adaptation
Homozygous
Fossils
Macroevolution
16. Speciation preceded by a period of geographical isolation
Hominid
Heterozygote
Allopatric Speciation
Stasis
17. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Phenotype
Semi - conservative replication
Character Displacement
Ice
18. How often a particular gene occurs in the population
Gene frequency
Mitosis
Polyploidy
Cenozoic era
19. Process by which one species gives rise to two or more species
Absolute dating
Speciation
DNA fingerprint
Haploid/Monoploid
20. Innate trait; shared ancestry
embryological evidence
Phyletic Gradualism (anagenesis)
transcription
homologous (Evolution Evidence)
21. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Molecular biology
codon
Macroevolution
Allele Frequency
22. Independent segregation of genes during the formation of gametes
False genes
Independent assortment
stop codon
RNA polymerase
23. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Mendel's traits are now called _____ found on DNA
Sex Chromosomes
Crossing over
mRNA
24. 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.
Guanine
Test Cross
Hybrid Inviability
Genetic Equilibrium
25. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
geologic time scale
Gene flow
Balanced Polymorphism
Gene
26. Impression made from a organism in soft material such as sand or mud.
polypeptide
Mold
Fossil
Isolating Mechanism
27. When F1 is fully fertile but F2 has low fertility (rice - cotton)
mRNA
Evolution
Hybrid Breakdown
Cytosine
28. What is one benefit for having two strands of DNA?
stop codon
Niche
Locus
If you lose one then you will still have one to back you up.
29. Change in allele frequencies as a result of the migration of a small subgroup of a population
Founder Effect
stop codon
Post -zygotic Mechanisms
Industrial Melanism
30. Change to a chromosome in which part of the chromosome is repeated
Mold
False RNA
Duplication
clinC
31. Disappearance of a species from all parts of its geographical range
Extinction
Environment
Fossil
Selection
32. 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.
Genetic Equilibrium
Mutation
Mate Selection
Test Cross
33. 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
genes
Selection pressure
Genotype
Species
34. When zygote does not complete development or is physically weaker than normal
Hominid
Hybrid Inviability
restriction enzymes - sticky ends
Biogeography
35. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Nucleotide
Genotype
Heterozygous
Population
36. 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
Habitat
deoxyribose and phosphate
index fossil
RNA polymerase
37. A change in the base sequence of DNA; the ultimate source of new alleles
Mutation
Temporal Isolation
Geographical Isolation
Adenine
38. 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.
restriction enzyme
Gene pool
Variation
proteins
39. DNA that is coiled around proteins
chromatin
Histone
cytosine in DNA is about equal to the percentage of guanine molecules
Homologous Structures
40. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
anticodon
Migration
introns
Incomplete Dominance
41. A combining of genes or characters different from what they were in the parents
Crossing over
Stabilising
Recombination
Temporal Isolation
42. A geographic gradient in the extent to which a character is developed in a species
Homologous Structures
clinC
tRNA
Founder effect
43. Features that are superficially similar but have different modes of development
The cell uses information from mRNA to produce proteins
Cast
Genotype
Analogous Features
44. 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.
Stabilising
Gametic
Double Helix
Molecular biology
45. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related
Genetic Drift
nucleus
Ring Species
Divergent Evolution
46. Recognize and cut DNA at specific sequences usually palindromes
restriction enzyme
Comparative embryology
Allopatric Speciation
mutation
47. The structure on a tRNA molecule that allows it interact with an mRNA molecule
False genes
anticodon
Sub - species
stop codon
48. 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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49. 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.
Punnett Square
Recessive
Coevolution
three
50. Cross where you cross unknown genotype with a recessive
Adenine
Gene Flow
Test Cross
Adaptation