SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. 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.
Vestigial structure
geologic time scale
Hybrid Inviability
Migration
2. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
The cell uses information from mRNA to produce proteins
Comparative anatomy
Stabilising
Genetic Equilibrium
3. Is found in DNA
thymine
Coevolution
Rosalind Franklin
tRNA
4. Group of similar organisms that can breed and produce fertile offspring
Species
Bottleneck Effect
Industrial Melanism
deoxyribose and phosphate
5. The type of environment in which an organism or group normally lives or occurs
Isolating Mechanism
introns
Habitat
Clade
6. Trait where heterozygous is a blending of two alleles
Autosomes
Chromatid
Genotype
Ecological Barrier
7. Evolution resulting from small specific genetic changes that can lead to a new subspecies
Genetic Drift
Microevolution
Extinction
Heterozygous
8. Disappearance of a species from all parts of its geographical range
Extinction
Selection
Allele
Mechanical (morphological) Isolation
9. 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
Heterozygote
Sex Chromosomes
Rosalind Franklin
Stabilising
10. When competition causes two closely related species to become more different in regions where their ranges overlap
Analogous Features
mRNA
Character Displacement
Insertion
11. 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.
Heterozygous
Founder Effect
Character Displacement
Thymine
12. A geographic gradient in the extent to which a character is developed in a species
Incomplete Dominance
Gametic
clinC
Mitosis
13. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Mutation
Migration
Homologous structures
Incomplete Dominance
14. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Paleozoic era
Founder Effect
its negative charge
Testcross
15. Determined the concept of complementary base pairing
replication
molecular evidence
Fossil
Chargaff
16. Proteins are made of...
Paleozoic era
amino acids
Petrification
analogous (Evolution Evidence)
17. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Medel worked with _____
Heritable variation
Mechanical (morphological) Isolation
Phenotype
18. Chromosomes are collections of many
Homozygote
Dominant
Reproductive Isolation
genes
19. Situation in which allele frequencies remain constant
Genetic Equilibrium
Heritable variation
Insertion
Meiosis
20. Copying the code from DNA onto mRNA
transcription
Mutagen
deoxyribose and phosphate
Comparative anatomy
21. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.
tRNA
Evolution
Sedimentary Rock
Founder effect
22. Process by which an organism is slowly turned to stone as the body is replaced by minerals.
Homologous Structures
Endemic
Petrification
proteins
23. Is active during transcription
Test Cross
Artificial selection
homologous (Evolution Evidence)
RNA polymerase
24. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
trace fossils
codon
mRNA
restriction enzyme
25. Pea plants
nucleotide
Adaptation
Medel worked with _____
Reproductive Isolation
26. The environmental factors that favour certain phenotypes
Adaptation
watson and crick
Selection pressure
Founder Effect
27. 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
hydrogen bonds
Chromatid
Paleozoic era
Genotype
28. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells
Evo Devo
restriction enzyme
Histone
Evolution
29. The adaptive increase in pigmentation as a result of human - induced pollutants
Industrial Melanism
Gene mutation
mutation
deoxyribonucleic acid
30. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Natural Selection
ribose - phosphate - and a base
Gene Pool
Homologous structures
31. One of the identical rods of a chromosome.
Test Cross
deoxyribonucleic acid
Fossil
Chromatid
32. A DNA double helix is held together in the center by between nitrogenous bases
hydrogen bonds
Hybrid Breakdown
Nucleotide
Speciation
33. Is any chromosome that is not a sex chromosome.
Autosomes
Histone
Locus
Testcross
34. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
vestigial (Evolution Evidence)
restriction enzymes - sticky ends
Analogous structures
Selection
35. Natural selection that causes the frequency of a particular allele to move in one direction
Environment
3 nucleotides
Ring Species
Directional Selection
36. Different alleles for a gene
Heterozygote
cytosine in DNA is about equal to the percentage of guanine molecules
Allele Frequency
Dihybrid
37. A population partially isolated from other populations of the same species
Balanced Polymorphism
Sex Chromosomes
Deme
Gene pool
38. The study relating the evolution of new charateristics to changes in the genes controlling development
Precambrian era
Behavioral (ethological) Isolation
Evo Devo
Gene
39. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful
Independent assortment
Behavioral (ethological) Isolation
stop codon
Post -zygotic Mechanisms
40. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
Monohybrid
Genome
stop codon
Mesozoic era
41. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
RNA polymerase
Artificial selection
Germ
Species
42. Inherited feature that tends to prevent species from interbreeding with other species
Comparative Anatomy
Convergent Evolution
Mechanical (morphological) Isolation
Isolating Mechanism
43. Form of reproductive isolation in which tere are differences in species courtship behavior
Dihybrid
Behavioral (ethological) Isolation
deoxyribose and phosphate
Vestigial structure
44. Condition in which an organism has extra sets of chromosomes
Allopatric Speciation
Mutation
Polyploidy
Comparative anatomy
45. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
Germ
clinC
mRNA
Homologous Structures
46. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Hershey and Chase
Ecological (habitat) Isolation
Genetic Drift
Translocation
47. A copy of a gene is made during a process called this
Monohybrid
transcription
Industrial Melanism
Mitosis
48. Ribosomal RNA; type of RNA that makes up part of the ribosome
Hybrid Infertility
Mass Extinction
rRNA
restriction enzymes - sticky ends
49. Process by which a ribosome uses the code on mRNA to make proteins
watson and crick
tRNA
Clade
translation
50. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Extinction
Mate Selection
Diploid
Gene pool