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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. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together
Cytosine
restriction enzymes - sticky ends
genes
Hershey and Chase
2. 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.
Medel worked with _____
Directional Selection
Nucleotide
Heterozygous
3. The independant evolution of similar traits - starting from a similar ancestral condition
its negative charge
Vestigial structure
Parallel Evolution
GATTACA
4. The structure on a tRNA molecule that allows it interact with an mRNA molecule
Parallel Evolution
anticodon
Absolute dating
Hominid
5. Is active during transcription
RNA polymerase
Relative dating
Adenine
Immigration
6. 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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7. 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
watson and crick
Temporal Isolation
Natural Selection
Sequential Evolution
8. The number of times an allele appears in a population
Allele Frequency
Analogous Structures (analogies)
Cenozoic era
Gametic
9. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
genes
Gene Pool
its negative charge
Precambrian era
10. T or F If a nucleic acid contain uracil it is DNA
Habitat
False RNA
genes
watson and crick
11. Embryos of similar organisms have very similar early development indicating similar DNA at work
hydrogen bonds
Deletion
Comparative Embryology
Homologous structures
12. Consists of all genes - including all the different alleles - that are present in a population
Gene pool
Pentadactyl limb
Crossing over
Habitat
13. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Ring Species
Convergent Evolution
Industrial Melanism
Precambrian era
14. The banding pattern of a persons DNA after being cut and run on gel is called
3 nucleotides
Deletion
DNA fingerprint
Species
15. Movement of organisms ro of from a population
Migration
Fossils
hydrogen bonds
Sex Chromosomes
16. Inherited feature that tends to prevent species from interbreeding with other species
mRNA
Isolating Mechanism
proteins
Sexual Selection
17. Change in allele frequencies as a result of the migration of a small subgroup of a population
Cytosine
Translocation
Founder Effect
Mutation
18. 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
Sequential Evolution
Allele Frequency
Sex Chromosomes
RNA polymerase
19. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Thymine
NIche Isolation
Population
Duplication
20. The study of the structures of different organisms - looking at homologous parts
Analogous Features
restriction enzymes - sticky ends
mutation
Comparative Anatomy
21. 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
Somatic
Hershey and Chase
Cytosine
codon
22. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
Haploid/Monoploid
Reproductive Isolation
Petrification
The cell uses information from mRNA to produce proteins
23. A nucleotide of RNA is made of...
three
Mitosis
Centromere
ribose - phosphate - and a base
24. 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
Meiosis
Amber
Paleozoic era
Temporal Isolation
25. Form of reproductive isolation in which tere are differences in species courtship behavior
Germ
Geographical Isolation
Behavioral (ethological) Isolation
Genetic Equilibrium
26. The movement of genes between populations as a result of mating of migration
Gene Flow
Independent assortment
Species
Hybrid Breakdown
27. A population partially isolated from other populations of the same species
Deme
that is complementary to a single strand of DNA
Allopatric Speciation
Adenine
28. Identical alleles for a gene
Phyletic Gradualism (anagenesis)
Homozygote
nucleotide
Test Cross
29. Process in which DNA is duplicated
Migration
deoxyribonucleic acid
Comparative Embryology
replication
30. Genes contain instructions for assembling
Ring Species
its negative charge
Chiasma
proteins
31. Dna moves during electrophoresis because of...
Mitosis
transcription
its negative charge
three
32. Selection acting against the middle of a range of variation
Environment
Disruptive Selection
Hybrid Inviability
Isolating Mechanism
33. Group of similar organisms that can breed and produce fertile offspring
Species
restriction enzymes - sticky ends
Genetic Drift
Chargaff
34. Innate trait; shared ancestry
Homologous Structures
homologous (Evolution Evidence)
Allele Frequency
index fossil
35. Human - like species that existed millions of years ago as witnessed through fossil evidence.
Comparative Embryology
Vestigial structure
geologic time scale
Hominid
36. 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.
DNA fingerprint
Reproductive Isolation
Double Helix
geologic time scale
37. Chromosomes are collections of many
Hybrid Breakdown
Homologous structures
Centromere
genes
38. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
Mass Extinction
Chromatid
Adenine
Test Cross
39. Hybrid is sterile so biologically unfit
Hybrid Infertility
Hershey and Chase
Niche
Mendel's Principle of Segregation
40. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
analogous (Evolution Evidence)
Selection
nucleotides
Guanine
41. Cross where you cross unknown genotype with a recessive
Duplication
Alleles
clinC
Test Cross
42. Group of individuals of the same species that live in the same area
replication
rRNA
Pre -zygotic Mechanisms
Population
43. Natural selection that causes the frequency of a particular allele to move in one direction
nucleotide
Directional Selection
Independent assortment
Founder Effect
44. Three mRNA nucleotides that code for a specific amino acid
codon
Biogeography
Cenozoic era
Founder effect
45. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
cytosine in DNA is about equal to the percentage of guanine molecules
Genetic Drift
Convergent Evolution
Allele Frequency
46. Copying the code from DNA onto mRNA
Gametic
three
transcription
homologous (Evolution Evidence)
47. 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.
Gametic
Nucleotide
Double Helix
Comparative Anatomy
48. Organ no longer serves a function
Temporal Isolation
vestigial (Evolution Evidence)
Vestigial structure
Hybrid
49. 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 (Evolution Evidence)
Phylogeny
molecular evidence
Balanced Polymorphism
50. Change to a chromosome in which a fragment of the chromosome is removed
introns
GATTACA
Mendel's Principle of Segregation
Deletion