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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. Is active during transcription
nucleotides
Recombination
RNA polymerase
Bottle neck effect
2. Different alleles for a gene
Homozygote
Behavioral (ethological) Isolation
analogous (Evolution Evidence)
Heterozygote
3. What does DNA stand for...
Hominid
Coevolution
cytoplasm
deoxyribonucleic acid
4. Dna moves during electrophoresis because of...
Locus
Genotype
codon
its negative charge
5. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Convergent Evolution
Parallel Evolution
Amber
Migration
6. A geographic gradient in the extent to which a character is developed in a species
Adaptation
Niche
nucleotide
clinC
7. 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.
Variation
Paleozoic era
Heritable variation
Mold
8. Process by which one species gives rise to two or more species
Speciation
Monohybrid Cross
Mass Extinction
Deme
9. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
polypeptide
homologous (Evolution Evidence)
Crossing over
translation
10. Hybrid is sterile so biologically unfit
Hybrid Infertility
thymine
Convergent Evolution
Genetic Equilibrium
11. 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
Mitosis
Natural Selection
tRNA
Absolute dating
12. The formation of new species as a result of evolution
thymine
transcription
Speciation
Fossils
13. T or F a codon consist of three nucleotides
Adaptive Radiation
true
Germ
Migration
14. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
body fossils
Behavioral (ethological) Isolation
Igneous and metamorphic rock
embryological evidence
15. A change or error in the DNA sequence
Chargaff
Duplication
mutation
tRNA
16. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Locus
NIche Isolation
Analogous Features
Centromere
17. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Translocation
rRNA
molecular evidence
Gene Pool
18. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
Thymine
Hershey and Chase
Mechanical (morphological) Isolation
Recombination
19. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Test Cross
Ring Species
transcription
Punnett Square
20. 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.
Homozygote
Genetic Drift
False genes
Homozygous
21. The comparison of the structures of different organisms
Selection
DNA
Comparative anatomy
Habitat
22. Embryos of similar organisms have very similar early development indicating similar DNA at work
Genetic Equilibrium
Fossils
Comparative Embryology
Behavioral (ethological) Isolation
23. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Niche
Dominant
Geologic Evolution
Balanced Polymorphism
24. Change in allele frequencies as a result of the migration of a small subgroup of a population
Extinction
Allopatric Speciation
Adenine
Founder Effect
25. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
Hominid
polypeptide
Centromere
Sedimentary Rock
26. Translation occurs in the...
Cenozoic era
RNA polymerase
cytoplasm
deoxyribonucleic acid
27. How many codons are needed to specify three amino acids
Fossil
Sympatric Speciation
Homozygous
three
28. 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.
Molecular biology
Speciation
Heterozygous
Natural Selection
29. One of the identical rods of a chromosome.
replication
Chromatid
Hybrid
cytosine in DNA is about equal to the percentage of guanine molecules
30. Cell division that produces reproductive cells or gamates.This occurs in the gonads (testicle and ovaries in animals) Here the chromosome number is halved the original amount. (each new cell has a haploid number = n) All daughter cells are not geneti
Meiosis
thymine
Sub - species
deoxyribose and phosphate
31. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
Clade
Biogeography
translation
Adenine
32. DNA is made of...
Adaptation
Adaptation
Hominid
nucleotides
33. Actual remains of an organism such as bones - teeth - shells - etc.
GATTACA
Duplication
body fossils
Genetic Equilibrium
34. Change in a DNA sequence that affects genetic information
anticodon
Guanine
Mutation
clinC
35. Periods of rapid evolution punctuated by periods of little change
Pentadactyl limb
Punctuated Equilibrium
stop codon
Sexual Selection
36. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Geographical Isolation
Variation
Analogous structures
Cast
37. Trait where heterozygous is a blending of two alleles
Endemic
Substitution
replication
Genotype
38. What happens during the process of translation
Stabilising
Natural Selection
The cell uses information from mRNA to produce proteins
Stasis
39. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Sedimentary Rock
Germ
deoxyribonucleic acid
Phyletic Gradualism (anagenesis)
40. Process by which a ribosome uses the code on mRNA to make proteins
codon
Chiasma
Analogous Features
translation
41. 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.
Phenotype
Test Cross
Mutagen
Vestigial organs
42. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Cast
Double Helix
hydrogen bonds
Variation
43. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles
Insertion
Selection
NIche Isolation
Dihybrid
44. When competition causes two closely related species to become more different in regions where their ranges overlap
Post -zygotic Mechanisms
Comparative Anatomy
Disruptive Selection
Character Displacement
45. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants
Parallel Evolution
Deme
Mesozoic era
Gamete Isolation
46. Another term for pure breeding
trace fossils
Ring Species
amino acid
Homozygous
47. Proteins are made of...
three
amino acids
Gene pool
introns
48. A population partially isolated from other populations of the same species
Double Helix
Ring Species
Deme
Isolating Mechanism
49. 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.
mRNA
Allele Frequency
Chromosome mutation
cytoplasm
50. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related
Autosomes
Nucleotide
Pre -zygotic Mechanisms
Divergent Evolution