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. Method of replication that implies that each new strand of DNA is half original and half new
Semi - conservative replication
Homologous Structures
Adaptive Radiation
its negative charge
2. Transfer RNA; type of RNA that carries amino acids to the ribosome
Paleozoic era
Genome
trace fossils
tRNA
3. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
embryological evidence
restriction enzymes - sticky ends
Reproductive Isolation
Parallel Evolution
4. The region of the chromosome that holds the two sister chromatids together during mitosis
Precambrian era
Crossing over
trace fossils
Centromere
5. Name for oism with one dominant and one recessive allele
Speciation
ribose - phosphate - and a base
Ring Species
Heterozygous
6. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Sedimentary Rock
Adaptive Radiation
Cast
Hybrid Inviability
7. During transcription an RNA molecule is formed
amino acids
tRNA
that is complementary to a single strand of DNA
Niche
8. Copying the code from DNA onto mRNA
Deletion
transcription
Environment
Crossing over
9. Features that are superficially similar but have different modes of development
Analogous Features
Deletion
Homologous Structures
Common Ancestor
10. 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.
Recessive
Sequential Evolution
homologous (Evolution Evidence)
Geologic Evolution
11. T or F a codon consist of three nucleotides
Polyploidy
true
Incomplete Dominance
Vestigial structure
12. 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
analogous (Evolution Evidence)
Sub - species
Comparative anatomy
Species
13. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Bottle neck effect
DNA fingerprint
Selection pressure
Selection
14. Dna moves during electrophoresis because of...
Heterozygote
Genetic Equilibrium
its negative charge
Cenozoic era
15. Impression made from a organism in soft material such as sand or mud.
Mold
Stabilising
Rosalind Franklin
Hybrid Breakdown
16. Group of individuals of the same species that live in the same area
tRNA
Genotype
Population
Sequential Evolution
17. An evolutionary 'branch' and its daughter 'twigs'
Clade
Genetic Equilibrium
Deletion
Vestigial organs
18. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
Haploid/Monoploid
geologic time scale
Stasis
Fossil
19. Natural selection that causes the frequency of a particular allele to move in one direction
Evolution
thymine
Phyletic Gradualism (anagenesis)
Directional Selection
20. Is any chromosome that is not a sex chromosome.
Autosomes
Gene pool
its negative charge
Disruptive Selection
21. The sum total of an organism's requirements; its way of life
Punctuated Equilibrium
Absolute dating
Duplication
Niche
22. Any agent that can cause a change in DNA
Founder Effect
Mutagen
transcription
codon
23. The backbone of DNA consist of...
Alleles
Industrial Melanism
Punctuated Equilibrium
deoxyribose and phosphate
24. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together
3 nucleotides
False genes
Genetic Drift
restriction enzymes - sticky ends
25. A change or error in the DNA sequence
Adaptation
mutation
Immigration
Sympatric Speciation
26. Change to a chromosome in which a fragment of the chromosome is removed
Deletion
rRNA
amino acid
Alleles
27. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Cytosine
Homologous structures
Ice
Double Helix
28. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Phyletic Gradualism (anagenesis)
Mendel's traits are now called _____ found on DNA
Haploid/Monoploid
Ecological Barrier
29. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Heterozygous
Homologous structures
Mendel's traits are now called _____ found on DNA
Homozygous
30. The gradual changes in gene frequencies in a population due to random events
Deletion
Medel worked with _____
Genetic Drift
amino acid
31. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic
Heterozygote
Gametic
tRNA
geologic time scale
32. How often a form of a gene appears in a gene pool
Behavioral (ethological) Isolation
Allele Frequency
Industrial Melanism
cytoplasm
33. Large - scale evolutionary changes that take place over long periods of time
its negative charge
mRNA
molecular evidence
Macroevolution
34. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
mRNA
Amber
Mendel's Principle of Segregation
Mechanical (morphological) Isolation
35. Another name for a gene
Diploid
Allele
Fossils
Paleozoic era
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.
Cast
restriction enzymes - sticky ends
Species
Double Helix
37. Determined the complete double helical structure of DNA
Comparative Embryology
watson and crick
Stabilising
Allele
38. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Comparative anatomy
Chromosomes
Genotype
Bottleneck Effect
39. A population partially isolated from other populations of the same species
Sedimentary Rock
Amber
Meiosis
Deme
40. A body cell
Vestigial organs
that is complementary to a single strand of DNA
Hybrid Inviability
Somatic
41. 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.
Population
Comparative Embryology
Chromosome mutation
rRNA
42. 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.
Divergent Evolution
transcription
Environment
Mate Selection
43. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
Directional Selection
Comparative Embryology
molecular evidence
tRNA
44. 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.
Biogeography
Heterozygous
Homozygous
Recessive
45. What is one benefit for having two strands of DNA?
RNA polymerase
Diploid
If you lose one then you will still have one to back you up.
Incomplete Dominance
46. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character
47. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Pentadactyl limb
Gene Flow
Guanine
Homozygous
48. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Diploid
GATTACA
Behavioral (ethological) Isolation
Petrification
49. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Monohybrid Cross
Coevolution
Allele Frequency
Germ
50. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Heterozygous
Testcross
Genome
watson and crick