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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. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Homologous structures
Species
Nucleotide
Deme
2. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Heterozygous
Polyploidy
Speciation
Geographical Isolation
3. Impression made from a organism in soft material such as sand or mud.
codon
Chromatid
Mold
Heterozygous
4. Evolution of living things - based on evidence from the past and present.
Gene flow
Migration
Organic Evolution
Recessive
5. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Amber
Heterozygous
watson and crick
Mutation
6. The evolutionary history/geneology of a group of organisms (a tree thingy)
deoxyribose and phosphate
Diploid
Analogous Features
Phylogeny
7. Movement of organisms ro of from a population
Precambrian era
Speciation
Migration
Natural Selection
8. A DNA double helix is held together in the center by between nitrogenous bases
hydrogen bonds
anticodon
Genotype
its negative charge
9. 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.
Homozygous
nucleus
Fitness
Nucleotide
10. When zygote does not complete development or is physically weaker than normal
Industrial Melanism
Hybrid Inviability
Founder Effect
Fitness
11. An episode of large - scale extinction affecting many different groups of organisms within a short period of time
Common Ancestor
Mass Extinction
homologous (Evolution Evidence)
Founder effect
12. 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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13. Two alternative forms of a gene e.g Tall vs Short
Alleles
False genes
Allele Frequency
mRNA
14. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Gene Pool
Population
Temporal Isolation
mRNA
15. Pea plants
hydrogen bonds
Dominant
Divergent Evolution
Medel worked with _____
16. A copy of a gene is made during a process called this
transcription
Paleozoic era
Hominid
Adaptation
17. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Cenozoic era
Pre -zygotic Mechanisms
Directional Selection
vestigial (Evolution Evidence)
18. Change to a chromosome in which a fragment of the chromosome is removed
Genetic Drift
mRNA
Deletion
Substitution
19. The study of the past and present distribution of species.
Biogeography
Petrification
Centromere
anticodon
20. How often a form of a gene appears in a gene pool
Allele Frequency
three
Dihybrid Cross
Genetic Drift
21. Is found in DNA
cytoplasm
Evo Devo
thymine
Divergent Evolution
22. Copying the code from DNA onto mRNA
index fossil
Heterozygous
transcription
Gene
23. 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.
Double Helix
stop codon
Test Cross
Fitness
24. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
Selection
Genetic Drift
Deletion
trace fossils
25. A limb with five digits (fingers)
Chromosome mutation
introns
Ecological (habitat) Isolation
Pentadactyl limb
26. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area
true
Gene frequency
Alleles
Ecological (habitat) Isolation
27. The capacity of an individual of certain genotype to reproduce. It is usually equal to the proportion of the individual's genes in all the genes of the next generation
Recombination
Mate Selection
cytoplasm
Fitness
28. A population partially isolated from other populations of the same species
Deme
clinC
Vestigial organs
Guanine
29. 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.
Comparative Embryology
Microevolution
Character Displacement
Mate Selection
30. The specific location of a gene on a chromosome
Locus
Evo Devo
Adaptation
Hybrid Breakdown
31. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Gene mutation
true
Molecular biology
Hybrid Breakdown
32. All the factors in an organism's surroundings that can potentially affect it
The cell uses information from mRNA to produce proteins
Environment
Gene flow
Monohybrid Cross
33. Different alleles for a gene
Heterozygote
Stasis
nucleotide
Allopatric Speciation
34. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.
Sequential Evolution
Gene Flow
Homologous pair
Crossing over
35. Change in allele frequencies as a result of the migration of a small subgroup of a population
Founder Effect
Phenotype
transcription
Translocation
36. 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.
Gene
Pre -zygotic Mechanisms
Monohybrid
Vestigial structure
37. Identical alleles for a gene
Homologous pair
Homozygote
Niche
Chiasma
38. Condition in which an organism has extra sets of chromosomes
Phenotype
Polyploidy
Mechanical (morphological) Isolation
Cytosine
39. The enzyme that binds to the promoter region of a gene during transcription is called...
replication
Absolute dating
Phyletic Gradualism (anagenesis)
RNA polymerase
40. Are noncoding sequences in the gene that are removed from RNA after transcription
nucleotides
Selection
amino acids
introns
41. Independent segregation of genes during the formation of gametes
Fossil
Independent assortment
Speciation
RNA polymerase
42. 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
Coevolution
Deletion
Meiosis
DNA
43. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Punnett Square
Chromosomes
Chiasma
Sedimentary Rock
44. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
homologous (Evolution Evidence)
Cenozoic era
Ecological (habitat) Isolation
Temporal Isolation
45. Change in a DNA sequence that affects genetic information
Mutation
Species
embryological evidence
Macroevolution
46. Which structure contains anticodons
Mesozoic era
Adaptation
Adenine
tRNA
47. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry
Sexual Selection
Mesozoic era
rRNA
Analogous Structures (analogies)
48. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
mRNA
Homozygote
homologous (Evolution Evidence)
Guanine
49. Determined the concept of complementary base pairing
Chargaff
Haploid/Monoploid
Ring Species
Habitat
50. Situation in which allele frequencies remain constant
thymine
Gamete Isolation
Mold
Genetic Equilibrium