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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 comparison of the structures of different organisms
Comparative anatomy
Natural Selection
Autosomes
trace fossils
2. A population partially isolated from other populations of the same species
nucleotides
Adaptive Radiation
Diploid
Deme
3. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Mass Extinction
Somatic
Divergent Evolution
Cenozoic era
4. A taxon originating from and including a single common ancestor
Rosalind Franklin
mutation
Monophyletic
translation
5. Predicts the possible outcome of a genetic cross.
Analogous Features
Isolating Mechanism
Balanced Polymorphism
Punnett Square
6. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Stabilising
Igneous and metamorphic rock
Dominant
introns
7. 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
Homozygous
Allele Frequency
Meiosis
cytoplasm
8. Proteins are made of...
amino acids
Mechanical (morphological) Isolation
Adaptation
Phenotype
9. A codon is made of...
3 nucleotides
Mesozoic era
Igneous and metamorphic rock
Adenine
10. A mutation in which one nucleotide is replaced by another nucleotide
Pentadactyl limb
Cast
Substitution
Fitness
11. Genes contain instructions for assembling
Organic Evolution
proteins
Comparative Anatomy
deoxyribonucleic acid
12. 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.
Mate Selection
Heritable variation
Common Ancestor
Gene
13. How many codons are needed to specify three amino acids
amino acids
Industrial Melanism
three
Gene mutation
14. Change in allele frequencies as a result of the migration of a small subgroup of a population
molecular evidence
Homozygous
Geographical Isolation
Founder Effect
15. Speciation which does not involve a period of geographical separation
body fossils
Sympatric Speciation
codon
Phenotype
16. Name for oism with one dominant and one recessive allele
Heterozygous
Dihybrid
Behavioral (ethological) Isolation
Phenotype
17. Form of reproductive isolation in which tere are differences in species courtship behavior
Mass Extinction
Sympatric Speciation
Behavioral (ethological) Isolation
Homologous Structures
18. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Independent assortment
Analogous structures
anticodon
Adenine
19. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y
watson and crick
Guanine
Variation
Sex Chromosomes
20. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.
Evolution
Speciation
Cast
gel electrophoresis
21. 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
deoxyribonucleic acid
Allele
Analogous Structures (analogies)
Directional Selection
22. A pairing where the parent plants differ in only one character.
Comparative embryology
Monohybrid Cross
Mendel's traits are now called _____ found on DNA
Species
23. 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
Species
Gene Flow
Comparative Embryology
If you lose one then you will still have one to back you up.
24. Movement of alleles into or out of a population due to the migration of individuals to or from the population
Sedimentary Rock
its negative charge
Hybrid Breakdown
Gene flow
25. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
stop codon
Dihybrid Cross
Incomplete Dominance
Thymine
26. Found only in that country
tRNA
Genotype
Founder effect
Endemic
27. Disappearance of a species from all parts of its geographical range
Selection
deoxyribonucleic acid
Extinction
Substitution
28. Any agent that can cause a change in DNA
Mutagen
Translocation
Comparative Embryology
DNA fingerprint
29. Is any chromosome that is not a sex chromosome.
Autosomes
Meiosis
If you lose one then you will still have one to back you up.
Convergent Evolution
30. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
Species
Locus
Comparative Anatomy
Haploid/Monoploid
31. Visual expression of a trait
Phenotype
Convergent Evolution
Absolute dating
Deme
32. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Bottleneck Effect
molecular evidence
Incomplete Dominance
Migration
33. Even if the gametes of the two species meet - fertilization does not occur
If you lose one then you will still have one to back you up.
Somatic
Gamete Isolation
that is complementary to a single strand of DNA
34. 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.
mRNA
Founder effect
Insertion
amino acids
35. A unique combination of traits that are passed down from one generation to another.
Homologous pair
Post -zygotic Mechanisms
Heritable variation
Natural Selection
36. Mutation where an extra base is added
Insertion
hydrogen bonds
Speciation
Mate Selection
37. The complete genetic material contained in an individual
chromatin
true
Bottleneck Effect
Genome
38. The specific location of a gene on a chromosome
Mutation
Locus
thymine
Polyploidy
39. The movement of genes between populations as a result of mating of migration
codon
Gene Flow
Mate Selection
Stabilising
40. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related
Divergent Evolution
its negative charge
Evolution
Heterozygous
41. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Founder effect
Ice
Pre -zygotic Mechanisms
Mendel's traits are now called _____ found on DNA
42. 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.
Mitosis
Stabilising
mRNA
Artificial selection
43. Evolution of living things - based on evidence from the past and present.
Microevolution
Organic Evolution
Recessive
Crossing over
44. 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
Duplication
mutation
Meiosis
Natural Selection
45. An evolutionary 'branch' and its daughter 'twigs'
Clade
Sex Chromosomes
Variation
Speciation
46. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Dominant
restriction enzyme
Codon
Translocation
47. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
Isolating Mechanism
Adaptation
Mate Selection
Adenine
48. T or F a codon consist of three nucleotides
true
Mold
genes
deoxyribose and phosphate
49. When zygote does not complete development or is physically weaker than normal
Hybrid Inviability
Histone
Convergent Evolution
Heterozygote
50. Gradual evolution within a lineage
Niche
Sequential Evolution
Vestigial structure
Reproductive Isolation