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Test your basic knowledge |
CSET Genetics And Evolution
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Subjects
:
cset
,
science
,
genetics
Instructions:
Answer 50 questions in 15 minutes.
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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. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Fossil
NIche Isolation
mutation
Nucleotide
2. The study of the past and present distribution of species.
Homologous Structures
Stabilising selection
Allele Frequency
Biogeography
3. The formation of new species as a result of evolution
Vestigial structure
Speciation
Cast
Industrial Melanism
4. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Monohybrid
Genome
mRNA
Amber
5. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related
Hybrid Inviability
DNA
Bottle neck effect
Divergent Evolution
6. A base found in DNA (but not in RNA). This base pairs with Adenine.
Testcross
Thymine
Fossils
Common Ancestor
7. 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.
False genes
Sexual Selection
Paleozoic era
Mate Selection
8. Hybrid is sterile so biologically unfit
Behavioral (ethological) Isolation
Hybrid Infertility
Igneous and metamorphic rock
Directional Selection
9. Predicts the possible outcome of a genetic cross.
NIche Isolation
Punnett Square
Clade
Gene Pool
10. Ribosomes are made of...
Sequential Evolution
rRNA
Ecological (habitat) Isolation
NIche Isolation
11. A population partially isolated from other populations of the same species
stop codon
Analogous Structures (analogies)
Deme
Founder Effect
12. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
Igneous and metamorphic rock
Chromosomes
Genotype
Monohybrid
13. 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.
Bottleneck Effect
true
Mitosis
Pentadactyl limb
14. Trait evolves overtime; NO common ancestry
DNA
analogous (Evolution Evidence)
Centromere
that is complementary to a single strand of DNA
15. The environmental factors that favour certain phenotypes
Allele
Homologous structures
Selection pressure
Extinction
16. The movement of individuals into an area
Immigration
tRNA
RNA polymerase
watson and crick
17. A distinct population of a species that varies from other populations of the same species.
Fossils
Insertion
amino acids
Sub - species
18. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
Genetic Drift
Directional Selection
Sedimentary Rock
Comparative Embryology
19. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Variation
Migration
Mendel's traits are now called _____ found on DNA
Geographical Isolation
20. How often a particular gene occurs in the population
Gene frequency
Geographical Isolation
Guanine
Centromere
21. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.
Diploid
Variation
polypeptide
deoxyribose and phosphate
22. Change to a chromosome in which part of the chromosome is repeated
deoxyribose and phosphate
molecular evidence
Monohybrid Cross
Duplication
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
Dihybrid Cross
Meiosis
Polyploidy
Selection pressure
24. The final product of transcription is...
Mutation
mRNA
Heterozygous
Somatic
25. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Molecular biology
Bottle neck effect
Temporal Isolation
Migration
26. Different alleles for a gene
Fossils
translation
Heterozygote
Analogous Structures (analogies)
27. Even if the gametes of the two species meet - fertilization does not occur
Gamete Isolation
Mendel's traits are now called _____ found on DNA
Sympatric Speciation
Dominant
28. A DNA double helix is held together in the center by between nitrogenous bases
nucleotides
gel electrophoresis
hydrogen bonds
codon
29. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Stabilising selection
Convergent Evolution
Balanced Polymorphism
Gene pool
30. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Test Cross
Guanine
thymine
Homologous Structures
31. Periods of rapid evolution punctuated by periods of little change
mRNA
Adaptation
Comparative Embryology
Punctuated Equilibrium
32. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Polyploidy
Adaptive Radiation
Dominant
Ring Species
33. Change in a DNA sequence that affects genetic information
Genotype
Mutation
Phenotype
Mitosis
34. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
nucleus
Phenotype
cytosine in DNA is about equal to the percentage of guanine molecules
Genetic Equilibrium
35. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Chromosome mutation
Disruptive Selection
Locus
Diploid
36. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Centromere
Incomplete Dominance
Reproductive Isolation
rRNA
37. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
stop codon
Allopatric Speciation
Analogous Structures (analogies)
Sequential Evolution
38. The evolutionary process by which a species becomes better suited to its niche.
Adenine
Sexual Selection
Biogeography
Adaptation
39. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.
Nucleotide
Macroevolution
Heritable variation
Chiasma
40. T or F A cloned organism has the same proteins as another organism
Insertion
False genes
replication
Mendel's Principle of Segregation
41. Inherited feature that tends to prevent species from interbreeding with other species
Sexual Selection
Deletion
Isolating Mechanism
Heterozygous
42. Translation occurs in the...
Coevolution
Founder Effect
mRNA
cytoplasm
43. Name for oism with one dominant and one recessive allele
that is complementary to a single strand of DNA
Alleles
Duplication
Heterozygous
44. Building block of a nucleic acid (DNA and RNA)
Habitat
nucleotide
Selection pressure
Mass Extinction
45. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Bottle neck effect
Gene flow
Mate Selection
Ice
46. Natural selection that causes the frequency of a particular allele to move in one direction
Variation
Speciation
Population
Directional Selection
47. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long
Chargaff
Migration
DNA
Balanced Polymorphism
48. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Hybrid Infertility
Molecular biology
Coevolution
homologous (Evolution Evidence)
49. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Gene
Cenozoic era
Chiasma
Monohybrid
50. 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.
Population
Translocation
Homologous pair
Stabilising selection
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