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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. T or F A cloned organism has the same proteins as another organism
embryological evidence
False genes
Gamete Isolation
Comparative Anatomy
2. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Translocation
Founder Effect
Gene
Adaptive Radiation
3. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Incomplete Dominance
Parallel Evolution
thymine
Reproductive Isolation
4. Is found in DNA
thymine
Stabilising
Macroevolution
Genetic Drift
5. A change or error in the DNA sequence
Heterozygous
mutation
False RNA
Monophyletic
6. Identical alleles for a gene
Sexual Selection
rRNA
Homozygote
Comparative Anatomy
7. T or F If a nucleic acid contain uracil it is DNA
Gene
Immigration
Meiosis
False RNA
8. A combining of genes or characters different from what they were in the parents
Recombination
Genetic Drift
Mitosis
Semi - conservative replication
9. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Fitness
Biogeography
replication
Germ
10. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
cytoplasm
Haploid/Monoploid
genes
DNA
11. Visual expression of a trait
Allele Frequency
Homologous structures
Phenotype
Homozygous
12. An ancestor that two or more descendants have in common
Recombination
Common Ancestor
Translocation
Bottle neck effect
13. Cross where you cross unknown genotype with a recessive
cytosine in DNA is about equal to the percentage of guanine molecules
its negative charge
Test Cross
False RNA
14. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
molecular evidence
Comparative embryology
Natural Selection
embryological evidence
15. 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.
Isolating Mechanism
Ecological Barrier
Mitosis
its negative charge
16. An evolutionary 'branch' and its daughter 'twigs'
mRNA
Endemic
Evo Devo
Clade
17. A body cell
Semi - conservative replication
Somatic
Incomplete Dominance
hydrogen bonds
18. Selection for the ability to obtain a mate
Locus
amino acid
Genetic Drift
Sexual Selection
19. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.
Absolute dating
Bottleneck Effect
Chromatid
Evolution
20. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
Translocation
Phylogeny
molecular evidence
homologous (Evolution Evidence)
21. During transcription an RNA molecule is formed
Directional Selection
Rosalind Franklin
Population
that is complementary to a single strand of DNA
22. The region of the chromosome that holds the two sister chromatids together during mitosis
Centromere
Directional Selection
Independent assortment
Gene mutation
23. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Stasis
deoxyribose and phosphate
Ice
Industrial Melanism
24. Innate trait; shared ancestry
transcription
homologous (Evolution Evidence)
Bottle neck effect
Chromosomes
25. A change in the base sequence of a gene
tRNA
translation
Gene mutation
Heterozygote
26. Organ that serves no useful function in an organism
Monohybrid Cross
mRNA
Vestigial organs
If you lose one then you will still have one to back you up.
27. A unique combination of traits that are passed down from one generation to another.
Heritable variation
true
Crossing over
Meiosis
28. 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.
Absolute dating
Organic Evolution
Founder effect
Ecological Barrier
29. A codon is made of...
mRNA
3 nucleotides
Ice
Genetic Equilibrium
30. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
DNA
Mutagen
Cast
Thymine
31. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Directional Selection
Phenotype
Chromosomes
Sequential Evolution
32. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Genetic Drift
3 nucleotides
Somatic
Cenozoic era
33. 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
Natural Selection
Species
Meiosis
Dihybrid Cross
34. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
cytosine in DNA is about equal to the percentage of guanine molecules
thymine
Coevolution
Adaptation
35. Mutation where an extra base is added
Sub - species
Insertion
Petrification
Hershey and Chase
36. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Hybrid
If you lose one then you will still have one to back you up.
Guanine
Endemic
37. Speciation preceded by a period of geographical isolation
Allopatric Speciation
Gene pool
Dominant
Heterozygote
38. Building block of a nucleic acid (DNA and RNA)
Mendel's traits are now called _____ found on DNA
Monophyletic
nucleotide
Speciation
39. Process by which a ribosome uses the code on mRNA to make proteins
Gene mutation
NIche Isolation
Paleozoic era
translation
40. Change in allele frequencies as a result of the migration of a small subgroup of a population
Recombination
Founder Effect
Homozygous
Genetic Drift
41. What happens during the process of translation
The cell uses information from mRNA to produce proteins
Somatic
Sex Chromosomes
rRNA
42. T or F a codon consist of three nucleotides
true
Insertion
proteins
clinC
43. Building block of a protein
Analogous structures
Test Cross
amino acid
Alleles
44. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Mutation
Bottleneck Effect
Somatic
Hominid
45. Mating of 2 oism that differ in 2 characters
Common Ancestor
Dihybrid Cross
genes
Absolute dating
46. Two alternative forms of a gene e.g Tall vs Short
False genes
Chiasma
Alleles
Heterozygous
47. The evolutionary process by which a species becomes better suited to its niche.
geologic time scale
Adaptation
Gene frequency
Species
48. Another name for a gene
Allele
cytoplasm
Precambrian era
Chromosome mutation
49. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Incomplete Dominance
Environment
Mendel's Principle of Segregation
Mutagen
50. A trait that masks the expression of another trait
nucleotide
Dominant
Endemic
Evolution