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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. Process in which DNA is duplicated
replication
Guanine
Chromosomes
codon
2. A taxon originating from and including a single common ancestor
its negative charge
Monophyletic
Homozygous
nucleotide
3. Is found in DNA
thymine
Mate Selection
Adaptation
Mass Extinction
4. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.
Variation
Genotype
Analogous Structures (analogies)
Vestigial structure
5. The sum total of an organism's requirements; its way of life
Niche
Recessive
stop codon
transcription
6. Transfer RNA; type of RNA that carries amino acids to the ribosome
Mechanical (morphological) Isolation
tRNA
Allele
Haploid/Monoploid
7. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
NIche Isolation
Habitat
Bottleneck Effect
Pre -zygotic Mechanisms
8. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.
Deletion
Analogous Structures (analogies)
Allopatric Speciation
Recessive
9. When zygote does not complete development or is physically weaker than normal
Genome
Hybrid Inviability
translation
Dihybrid Cross
10. During transcription an RNA molecule is formed
trace fossils
Locus
Independent assortment
that is complementary to a single strand of DNA
11. A base found in DNA (but not in RNA). This base pairs with Adenine.
Test Cross
Selection
Mate Selection
Thymine
12. The comparison of the structures of different organisms
Sympatric Speciation
Habitat
Comparative anatomy
Natural Selection
13. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Stabilising
RNA polymerase
deoxyribose and phosphate
Mechanical (morphological) Isolation
14. The number of times an allele appears in a population
Mutation
Environment
Allele Frequency
introns
15. 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
nucleotide
Stabilising
Analogous Structures (analogies)
Natural Selection
16. Determined the complete double helical structure of DNA
Ecological Barrier
watson and crick
mRNA
restriction enzymes - sticky ends
17. 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.
Comparative anatomy
Igneous and metamorphic rock
Ice
Directional Selection
18. A copy of a gene is made during a process called this
Phyletic Gradualism (anagenesis)
Character Displacement
Reproductive Isolation
transcription
19. Change in allele frequencies as a result of the migration of a small subgroup of a population
Somatic
nucleotide
Disruptive Selection
Founder Effect
20. Which type of Rna functions as a blue print of the genetic code
body fossils
codon
Clade
mRNA
21. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Homozygous
Translocation
Phyletic Gradualism (anagenesis)
transcription
22. Speciation preceded by a period of geographical isolation
Cenozoic era
Heterozygous
Allopatric Speciation
Industrial Melanism
23. 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
Centromere
Sexual Selection
Geologic Evolution
Meiosis
24. A DNA strand that has the bases CTAATGT forms a complete complementary double helix with
GATTACA
Fossils
The cell uses information from mRNA to produce proteins
Monophyletic
25. 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
Sex Chromosomes
Ice
tRNA
Migration
26. Is any chromosome that is not a sex chromosome.
Nucleotide
Meiosis
Autosomes
Deletion
27. Human - like species that existed millions of years ago as witnessed through fossil evidence.
Mendel's Principle of Segregation
Punnett Square
Hominid
polypeptide
28. The independant evolution of similar traits - starting from a similar ancestral condition
Chargaff
Parallel Evolution
Character Displacement
Evo Devo
29. A trait that masks the expression of another trait
vestigial (Evolution Evidence)
Dominant
Germ
Rosalind Franklin
30. Form of reproductive isolation in which two populations reproduce at different times
Comparative Anatomy
deoxyribonucleic acid
Temporal Isolation
Parallel Evolution
31. 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.
Chromosome mutation
Common Ancestor
Speciation
transcription
32. The study of the structures of different organisms - looking at homologous parts
Test Cross
analogous (Evolution Evidence)
Ecological (habitat) Isolation
Comparative Anatomy
33. Selection acting against the middle of a range of variation
Stabilising
Crossing over
Disruptive Selection
Hominid
34. Mutation where an extra base is added
Common Ancestor
Cenozoic era
Insertion
Hybrid Breakdown
35. A change in the base sequence of DNA; the ultimate source of new alleles
Migration
Sedimentary Rock
Mutation
Organic Evolution
36. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
Guanine
Crossing over
Polyploidy
Homologous pair
37. Speciation which does not involve a period of geographical separation
Sympatric Speciation
Chromosomes
Stabilising selection
Divergent Evolution
38. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
Heterozygous
Haploid/Monoploid
Independent assortment
transcription
39. Trait where heterozygous is a blending of two alleles
Genotype
Gene Pool
Reproductive Isolation
Mitosis
40. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Heterozygous
Biogeography
Divergent Evolution
Guanine
41. A limb with five digits (fingers)
Character Displacement
RNA polymerase
Pentadactyl limb
Directional Selection
42. The region of the chromosome that holds the two sister chromatids together during mitosis
Petrification
Alleles
embryological evidence
Centromere
43. Impression made from a organism in soft material such as sand or mud.
Locus
Monohybrid Cross
Mutation
Mold
44. Another name for a gene
mutation
Habitat
Fitness
Allele
45. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Diploid
Adaptation
Gamete Isolation
Organic Evolution
46. An ancestor that two or more descendants have in common
Common Ancestor
Semi - conservative replication
Analogous Structures (analogies)
Homozygote
47. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Guanine
cytoplasm
Genetic Equilibrium
Comparative anatomy
48. How often a particular gene occurs in the population
Monophyletic
Fossils
Gene frequency
Analogous Structures (analogies)
49. Visual expression of a trait
hydrogen bonds
body fossils
Phenotype
Convergent Evolution
50. Hybrid is sterile so biologically unfit
Hybrid Infertility
Speciation
Biogeography
Mechanical (morphological) Isolation