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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. 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
Paleozoic era
Speciation
Meiosis
Analogous structures
2. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Analogous Structures (analogies)
GATTACA
Ecological (habitat) Isolation
Natural Selection
3. T or F If a nucleic acid contain uracil it is DNA
Crossing over
hydrogen bonds
Migration
False RNA
4. Organ that serves no useful function in an organism
Vestigial organs
Test Cross
mRNA
anticodon
5. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
codon
Allele Frequency
polypeptide
Crossing over
6. A taxon originating from and including a single common ancestor
Recessive
Recombination
If you lose one then you will still have one to back you up.
Monophyletic
7. The sum total of an organism's requirements; its way of life
Microevolution
Species
Niche
GATTACA
8. Predicts the possible outcome of a genetic cross.
polypeptide
Gene frequency
Punnett Square
Vestigial structure
9. All the factors in an organism's surroundings that can potentially affect it
tRNA
Homologous Structures
Character Displacement
Environment
10. The study of the past and present distribution of species.
Test Cross
Adenine
Biogeography
Allele Frequency
11. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Reproductive Isolation
Dihybrid
amino acids
DNA
12. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Substitution
Cenozoic era
chromatin
NIche Isolation
13. The independant evolution of similar traits - starting from a similar ancestral condition
homologous (Evolution Evidence)
Mate Selection
Hybrid Infertility
Parallel Evolution
14. Name for oism with one dominant and one recessive allele
Mutation
Analogous Features
Heterozygous
Adaptive Radiation
15. DNA is made of...
Mold
Cast
rRNA
nucleotides
16. These prevent fertilization between species e.g. diff breeding season - mating behaviour
rRNA
Pre -zygotic Mechanisms
Disruptive Selection
Deletion
17. The final product of transcription is...
Sedimentary Rock
mRNA
Selection pressure
Disruptive Selection
18. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
Pentadactyl limb
Alleles
Adenine
Deme
19. Because of base pairing in DNA the amount of
Mutagen
cytosine in DNA is about equal to the percentage of guanine molecules
Independent assortment
Allele Frequency
20. Change in allele frequencies as a result of the migration of a small subgroup of a population
cytoplasm
Phenotype
Founder Effect
Monohybrid Cross
21. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Homologous Structures
Incomplete Dominance
Mutagen
analogous (Evolution Evidence)
22. A change or error in the DNA sequence
mutation
The cell uses information from mRNA to produce proteins
Disruptive Selection
introns
23. Trait evolves overtime; NO common ancestry
analogous (Evolution Evidence)
chromatin
The cell uses information from mRNA to produce proteins
Ecological Barrier
24. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
index fossil
Ice
Dominant
Medel worked with _____
25. 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
Gene mutation
Paleozoic era
Test Cross
Duplication
26. Any agent that can cause a change in DNA
Directional Selection
Mutagen
Incomplete Dominance
Sedimentary Rock
27. An ancestor that two or more descendants have in common
DNA fingerprint
Character Displacement
Common Ancestor
Clade
28. 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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29. Hybrid is sterile so biologically unfit
Hybrid Infertility
Hybrid
Mutation
Founder Effect
30. 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.
trace fossils
Clade
Ring Species
Absolute dating
31. A population partially isolated from other populations of the same species
amino acid
Nucleotide
If you lose one then you will still have one to back you up.
Deme
32. A geographic gradient in the extent to which a character is developed in a species
clinC
Comparative Anatomy
Chromosome mutation
three
33. Process by which one species gives rise to two or more species
Haploid/Monoploid
Speciation
Environment
Homozygote
34. Identical alleles for a gene
tRNA
chromatin
Homozygote
true
35. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Dihybrid Cross
Gene pool
Mass Extinction
Ring Species
36. Disappearance of a species from all parts of its geographical range
vestigial (Evolution Evidence)
Dominant
Extinction
Monohybrid
37. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Geographical Isolation
Stasis
Heritable variation
chromatin
38. Speciation preceded by a period of geographical isolation
Monohybrid
Balanced Polymorphism
Allopatric Speciation
Heritable variation
39. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Translocation
Test Cross
Polyploidy
embryological evidence
40. Evolution resulting from small specific genetic changes that can lead to a new subspecies
Macroevolution
Test Cross
Microevolution
Codon
41. The movement of genes between populations as a result of mating of migration
Comparative Embryology
Semi - conservative replication
Gene mutation
Gene Flow
42. A copy of a gene is made during a process called this
transcription
anticodon
Deme
Phyletic Gradualism (anagenesis)
43. The number of times an allele appears in a population
ribose - phosphate - and a base
Allele Frequency
Gamete Isolation
Homologous pair
44. The comparison of the structures of different organisms
Comparative anatomy
Insertion
Translocation
Punctuated Equilibrium
45. A combining of genes or characters different from what they were in the parents
Meiosis
mRNA
Recombination
Character Displacement
46. Determined the concept of complementary base pairing
Chargaff
Gene
Sexual Selection
Recombination
47. What happens during the process of translation
translation
Directional Selection
The cell uses information from mRNA to produce proteins
Population
48. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Substitution
Phenotype
Mesozoic era
Gene flow
49. The gradual changes in gene frequencies in a population due to random events
Thymine
Genetic Drift
molecular evidence
GATTACA
50. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
Parallel Evolution
Geologic Evolution
cytosine in DNA is about equal to the percentage of guanine molecules
stop codon