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. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Geographical Isolation
Chiasma
Ice
Bottle neck effect
2. T or F a codon consist of three nucleotides
molecular evidence
Phyletic Gradualism (anagenesis)
Genetic Drift
true
3. Is a trait that is more expressed than another trait. Is written in capital letters for Genotype. E.g Tall genotype is TT or Tt where T is the allele for tall trait and t is the trait for small. T will be expressed more.
Medel worked with _____
Dominant
Sexual Selection
Adaptive Radiation
4. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Natural Selection
anticodon
Mutation
tRNA
5. 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.
Allele Frequency
polypeptide
Phenotype
Gene
6. Genes contain instructions for assembling
proteins
Genotype
Fossil
DNA
7. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
transcription
Vestigial structure
mRNA
Phenotype
8. Is the evolutionary process whereby a population becomes better suited to its habitat
Adaptation
Natural Selection
Sequential Evolution
transcription
9. Process in which DNA is duplicated
Habitat
Genetic Drift
Bottle neck effect
replication
10. The evolutionary process by which a species becomes better suited to its niche.
Relative dating
Adaptation
Gene frequency
geologic time scale
11. 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.
Cytosine
Vestigial structure
Geologic Evolution
geologic time scale
12. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.
Ecological (habitat) Isolation
Directional Selection
Absolute dating
Mate Selection
13. Determined the complete double helical structure of DNA
nucleotide
Recombination
Sympatric Speciation
watson and crick
14. Determined the concept of complementary base pairing
molecular evidence
Chargaff
Selection
index fossil
15. Any agent that can cause a change in DNA
Mutagen
mutation
Sex Chromosomes
Recombination
16. 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.
Comparative Anatomy
nucleus
Common Ancestor
Chromosome mutation
17. 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.
Test Cross
Igneous and metamorphic rock
watson and crick
False genes
18. Is any chromosome that is not a sex chromosome.
Analogous Structures (analogies)
thymine
Locus
Autosomes
19. Inherited feature that tends to prevent species from interbreeding with other species
Isolating Mechanism
Selection pressure
transcription
Guanine
20. Movement of alleles into or out of a population due to the migration of individuals to or from the population
transcription
Mechanical (morphological) Isolation
Monohybrid Cross
Gene flow
21. The final product of transcription is...
Sexual Selection
Monohybrid Cross
mRNA
Directional Selection
22. Hybrid is sterile so biologically unfit
Amber
true
Hybrid Infertility
Ring Species
23. A change in the base sequence of DNA; the ultimate source of new alleles
Analogous Features
Gene pool
Gene
Mutation
24. Visual expression of a trait
Igneous and metamorphic rock
Niche
Phenotype
deoxyribose and phosphate
25. A codon is made of...
Allele Frequency
Precambrian era
3 nucleotides
The cell uses information from mRNA to produce proteins
26. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.
Evo Devo
Relative dating
RNA polymerase
Medel worked with _____
27. A taxon originating from and including a single common ancestor
Population
Artificial selection
Allele
Monophyletic
28. Method of replication that implies that each new strand of DNA is half original and half new
Sub - species
Semi - conservative replication
chromatin
Adaptive Radiation
29. Selection acting against the middle of a range of variation
Disruptive Selection
Duplication
Absolute dating
clinC
30. Periods of rapid evolution punctuated by periods of little change
Punnett Square
Punctuated Equilibrium
False RNA
anticodon
31. Pea plants
restriction enzymes - sticky ends
Medel worked with _____
Hybrid Infertility
DNA
32. Disappearance of a species from all parts of its geographical range
Analogous Structures (analogies)
Extinction
Hershey and Chase
Niche
33. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Testcross
Punnett Square
Heterozygous
Balanced Polymorphism
34. Mating of 2 oism that differ in 2 characters
Evolution
Mendel's Principle of Segregation
Insertion
Dihybrid Cross
35. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Homologous Structures
Directional Selection
Pre -zygotic Mechanisms
Stabilising selection
36. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Population
Cenozoic era
Chiasma
Chromosomes
37. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Geologic Evolution
Hybrid Inviability
Natural Selection
Sex Chromosomes
38. A copy of a gene is made during a process called this
transcription
Immigration
Deme
Meiosis
39. Identical alleles for a gene
Heritable variation
Homozygote
Mesozoic era
rRNA
40. Copying the code from DNA onto mRNA
The cell uses information from mRNA to produce proteins
transcription
Common Ancestor
Codon
41. Process by which one species gives rise to two or more species
Fitness
Allopatric Speciation
Geographical Isolation
Speciation
42. Group of similar organisms that can breed and produce fertile offspring
Punctuated Equilibrium
embryological evidence
Species
Vestigial structure
43. Trait where heterozygous is a blending of two alleles
cytoplasm
Genotype
Migration
Analogous Features
44. The backbone of DNA consist of...
Chiasma
deoxyribose and phosphate
Test Cross
Histone
45. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Double Helix
Coevolution
Analogous Structures (analogies)
true
46. Term used to refer to an organism that has two identical alleles for a particular trait. e.g TT is the homozygous genotype for Tall.
Stabilising
Homozygous
Diploid
DNA
47. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
Hershey and Chase
Chiasma
Monohybrid
thymine
48. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Organic Evolution
Chargaff
Germ
embryological evidence
49. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
50. The enzyme that binds to the promoter region of a gene during transcription is called...
Post -zygotic Mechanisms
Microevolution
Convergent Evolution
RNA polymerase