Worksheets13 Evolution: Speciation 1
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
Group of actively or potentially interbreeding individuals, produce fertile offspring, reproductively isolated from other groups
a)
Family
b)
Species
c)
Genus
d)
Phylum
2.
Large, irreversible changes in gene frequencies
a)
Evolution
b)
Microevolution
c)
Macroevolution
d)
Mutation
3.
The process of formation of new species (best answer)
a)
Evolution
b)
Microevolution
c)
Macroevolution
d)
Speciation
4.
Any factor that leads to genetic isolation. May be of various types.
a)
Meiosis
b)
Geographic isolation
c)
Reproductive isolating mechanism
d)
Allopatric speciation
5.
Reproductive isolating mechanism (RIM) that acts after fertilization of egg by sperm.
a)
Prezygotic
b)
Postzygotic
c)
Premating
d)
Postmating
6.
Reproductive isolating mechanism (RIM) that acts to prevent fertilization of egg by sperm.
a)
Prezygotic
b)
Postzygotic
c)
Premating
d)
Postmating
7.
Process of speciation -new species diverging in geographically separated areas where gene flow was prevented by geographic barriers
a)
Evolution
b)
Polyploidy
c)
Sympartic
d)
Allopatric
8.
Process where new species diverge in the same geographical area due to different selection pressures
a)
Evolution
b)
Sympatric speciation
c)
Polyploidy
d)
Allopatric speciation
9.
Process that results in multiple sets of chromosomes. Sudden evolution.
a)
Divergent evolution
b)
Convergent evolution
c)
Polyploidy
d)
Meiosis
10.
A polyploid individual that contains genetic material from 2 (or more) different parental species.
a)
Autopolyploid
b)
Allopolyploid
11.
A process that results in the doubling of chromosome number in an otherwise infertile hybrid.
a)
non- disjunction
b)
Mitosis
c)
Disjunction
d)
Meiosis
12.
Cause of polyploidy
a)
Mutation
b)
Fetilisation
c)
Non-disjunction
d)
Meiosis
100 %
