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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. The environmental factors that favour certain phenotypes
Stasis
Selection pressure
Evolution
Mate Selection
2. One of the identical rods of a chromosome.
Gamete Isolation
Comparative anatomy
Clade
Chromatid
3. An evolutionary 'branch' and its daughter 'twigs'
Clade
Monophyletic
genes
Dihybrid
4. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.
Recombination
Igneous and metamorphic rock
Stabilising
Mesozoic era
5. When competition causes two closely related species to become more different in regions where their ranges overlap
body fossils
nucleus
Character Displacement
Punnett Square
6. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Crossing over
Analogous structures
Haploid/Monoploid
Sedimentary Rock
7. Movement of alleles into or out of a population due to the migration of individuals to or from the population
Microevolution
Gene flow
cytosine in DNA is about equal to the percentage of guanine molecules
deoxyribose and phosphate
8. Process by which an organism is slowly turned to stone as the body is replaced by minerals.
Gene mutation
Petrification
stop codon
Evolution
9. Hybrid is sterile so biologically unfit
Hybrid Infertility
Population
Testcross
Allele Frequency
10. Embryos of similar organisms have very similar early development indicating similar DNA at work
GATTACA
Variation
Comparative Embryology
Cenozoic era
11. Consists of all genes - including all the different alleles - that are present in a population
gel electrophoresis
Test Cross
Histone
Gene pool
12. Translation occurs in the...
Deletion
cytoplasm
Genome
Genotype
13. Group of individuals of the same species that live in the same area
Disruptive Selection
Population
Chromatid
Chargaff
14. T or F a codon consist of three nucleotides
Cytosine
true
restriction enzyme
Homologous structures
15. 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
Convergent Evolution
Double Helix
Paleozoic era
Industrial Melanism
16. 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
Balanced Polymorphism
Fitness
Heritable variation
Population
17. Periods of rapid evolution punctuated by periods of little change
Punctuated Equilibrium
Paleozoic era
Species
Germ
18. A distinct population of a species that varies from other populations of the same species.
embryological evidence
NIche Isolation
Sub - species
transcription
19. Gradual evolution within a lineage
Allele
Ecological Barrier
Sequential Evolution
Disruptive Selection
20. The region of the chromosome that holds the two sister chromatids together during mitosis
Stabilising
Recombination
anticodon
Centromere
21. 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.
mutation
Gene flow
Homologous pair
Population
22. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
Convergent Evolution
index fossil
Genotype
Insertion
23. Found only in that country
its negative charge
Bottleneck Effect
Endemic
Hybrid
24. Determined the complete double helical structure of DNA
amino acid
Organic Evolution
watson and crick
Natural Selection
25. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Crossing over
Adaptation
Migration
mRNA
26. 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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27. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes. Mitosis involves growth and repair and occurs in the body cells.
Autosomes
Mitosis
Double Helix
Incomplete Dominance
28. Used x ray cyrstallography to create an image of DNA
Common Ancestor
rRNA
Niche
Rosalind Franklin
29. The final product of transcription is...
Deme
False genes
Speciation
mRNA
30. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Dihybrid
Convergent Evolution
Incomplete Dominance
Heterozygous
31. Copying the code from DNA onto mRNA
Coevolution
its negative charge
Chromatid
transcription
32. Identical alleles for a gene
Gene Pool
deoxyribose and phosphate
Homozygote
Adenine
33. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
proteins
Cast
Absolute dating
Substitution
34. Evolution resulting from small specific genetic changes that can lead to a new subspecies
Microevolution
Comparative Embryology
Coevolution
Cenozoic era
35. Visual expression of a trait
Species
Phenotype
Chromatid
Sub - species
36. Trait evolves overtime; NO common ancestry
Speciation
Founder Effect
Homozygous
analogous (Evolution Evidence)
37. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Homologous structures
Directional Selection
Phyletic Gradualism (anagenesis)
Molecular biology
38. The structure on a tRNA molecule that allows it interact with an mRNA molecule
Allele Frequency
tRNA
Stasis
anticodon
39. A trait that masks the expression of another trait
Dominant
Chargaff
Igneous and metamorphic rock
gel electrophoresis
40. Is found in DNA
Mate Selection
Nucleotide
thymine
embryological evidence
41. A limb with five digits (fingers)
Pentadactyl limb
Comparative embryology
Sequential Evolution
Genotype
42. 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.
Heterozygous
genes
Substitution
Ring Species
43. The study of the structures of different organisms - looking at homologous parts
amino acids
Comparative Anatomy
DNA
Heterozygous
44. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Bottle neck effect
Chromosomes
Allele Frequency
Fossil
45. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
Monohybrid
Homozygous
Deme
embryological evidence
46. A base found in DNA (but not in RNA). This base pairs with Adenine.
Thymine
Codon
Alleles
index fossil
47. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.
Allopatric Speciation
Homozygote
If you lose one then you will still have one to back you up.
Founder effect
48. Actual remains of an organism such as bones - teeth - shells - etc.
Paleozoic era
body fossils
Analogous Features
Stasis
49. How many codons are needed to specify three amino acids
Divergent Evolution
Hybrid Breakdown
index fossil
three
50. Which type of Rna functions as a blue print of the genetic code
Somatic
mRNA
tRNA
Gametic