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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. Independent segregation of genes during the formation of gametes
nucleotides
transcription
Independent assortment
Geographical Isolation
2. Change to a chromosome in which part of the chromosome is repeated
Stasis
Genetic Drift
Duplication
molecular evidence
3. A base found in DNA (but not in RNA). This base pairs with Adenine.
Thymine
ribose - phosphate - and a base
Isolating Mechanism
RNA polymerase
4. Movement of organisms ro of from a population
Migration
Punnett Square
Independent assortment
nucleotide
5. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.
transcription
Gene
Genetic Drift
hydrogen bonds
6. Used x ray cyrstallography to create an image of DNA
Test Cross
Rosalind Franklin
homologous (Evolution Evidence)
Fossil
7. 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
index fossil
nucleotides
tRNA
Allele Frequency
8. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Hybrid Breakdown
Dihybrid Cross
polypeptide
Bottleneck Effect
9. The movement of genes between populations as a result of mating of migration
Chargaff
Industrial Melanism
Gene Flow
Genetic Equilibrium
10. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
Petrification
RNA polymerase
Monohybrid
Insertion
11. Mutation where an extra base is added
Analogous Features
Insertion
Ring Species
tRNA
12. The structure on a tRNA molecule that allows it interact with an mRNA molecule
Genome
Hybrid Breakdown
anticodon
tRNA
13. Another name for a gene
Substitution
Allele
Hershey and Chase
Homozygous
14. Cross where you cross unknown genotype with a recessive
Hershey and Chase
Test Cross
thymine
Recessive
15. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Coevolution
Alleles
Chromosomes
its negative charge
16. Because of base pairing in DNA the amount of
cytosine in DNA is about equal to the percentage of guanine molecules
Sex Chromosomes
Phyletic Gradualism (anagenesis)
Mesozoic era
17. Trait where heterozygous is a blending of two alleles
Divergent Evolution
Genotype
Semi - conservative replication
Histone
18. Predicts the possible outcome of a genetic cross.
Gene pool
Deletion
Punnett Square
Sequential Evolution
19. Gradual evolution within a lineage
Sequential Evolution
RNA polymerase
that is complementary to a single strand of DNA
GATTACA
20. Transfer RNA; type of RNA that carries amino acids to the ribosome
Dominant
Paleozoic era
tRNA
Molecular biology
21. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Gene Pool
Chromosomes
Genetic Drift
codon
22. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
restriction enzymes - sticky ends
Translocation
Monohybrid Cross
Homozygous
23. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
Gene Pool
mutation
Sedimentary Rock
Species
24. A unique combination of traits that are passed down from one generation to another.
Heritable variation
Adenine
Cast
Stabilising
25. 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.
transcription
Double Helix
Industrial Melanism
Stabilising selection
26. Gene
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27. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
trace fossils
Homologous structures
Bottleneck Effect
Gene frequency
28. Are noncoding sequences in the gene that are removed from RNA after transcription
Deletion
Endemic
introns
False genes
29. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
Monohybrid Cross
Coevolution
False RNA
30. 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
Phenotype
Paleozoic era
Founder Effect
mutation
31. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
Clade
Comparative embryology
Variation
three
32. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Cytosine
Fossils
codon
Mendel's Principle of Segregation
33. 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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34. Situation in which allele frequencies remain constant
Recessive
Genetic Equilibrium
Clade
Cenozoic era
35. How often a particular gene occurs in the population
Hybrid Inviability
Locus
restriction enzyme
Gene frequency
36. How often a form of a gene appears in a gene pool
Amber
Allele Frequency
Hershey and Chase
Sub - species
37. Genes contain instructions for assembling
vestigial (Evolution Evidence)
proteins
Dominant
nucleus
38. Innate trait; shared ancestry
Sequential Evolution
Coevolution
deoxyribose and phosphate
homologous (Evolution Evidence)
39. A pairing where the parent plants differ in only one character.
vestigial (Evolution Evidence)
Habitat
Monohybrid Cross
Double Helix
40. A change in the base sequence of a gene
translation
Mendel's traits are now called _____ found on DNA
rRNA
Gene mutation
41. An evolutionary 'branch' and its daughter 'twigs'
Ecological Barrier
Clade
Ice
Ecological (habitat) Isolation
42. Is a trait that is more expressed than another trait. Is written in capital letters for Genotype. E.g Tall genotype is TT or Tt where T is the allele for tall trait and t is the trait for small. T will be expressed more.
Punctuated Equilibrium
Dominant
Medel worked with _____
true
43. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Dihybrid Cross
Founder effect
Comparative embryology
Directional Selection
44. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells
transcription
Species
Heterozygous
Histone
45. Mating of 2 oism that differ in 2 characters
Natural Selection
Disruptive Selection
transcription
Dihybrid Cross
46. A DNA double helix is held together in the center by between nitrogenous bases
rRNA
Genetic Equilibrium
hydrogen bonds
Extinction
47. Visual expression of a trait
Selection pressure
Thymine
Phenotype
Crossing over
48. Inherited feature that tends to prevent species from interbreeding with other species
Isolating Mechanism
stop codon
Chiasma
Geographical Isolation
49. Proteins are made of...
Medel worked with _____
amino acids
Mitosis
cytoplasm
50. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Autosomes
cytosine in DNA is about equal to the percentage of guanine molecules
that is complementary to a single strand of DNA
Ring Species