IB Bio HL Topic 10 Genetics and Evolution

Which is the set of alleles that an individual possesses?

• A gene
• A genotype
• A genome
• A genus

What is a genetic test cross?

• Testing a suspected homozygote by crossing it with a known heterozygote
• Testing a suspected heterozygote by crossing it with a known heterozygote
• Testing a suspected homozygote by crossing it with a known homozygous dominant
• Testing a suspected heterozygote by crossing it with a known homozygous recessive

What is a suspected heterozygous individual crossed with in a test cross?

• Homozygous dominant
• Homozygous Recessive
• Heterozygous dominant
• Heterozygous recessive

The ABO blood grouping system has alleles of I^A, I^B and i. What is this an example of?
a) co-dominance
b) multiple alleles
c) sex-lingage
d) polygenic traits

• a) only
• a) and b) only
• b) and c) only
• b) and d) only

Which 4 are valid lines of evidence for the Theory of Evolution?

• Fossil records

• DNA analysis

• Comparative anatomy

• Embryology & Development

• Looking at the members of a family over 3 generations

Tags

NGSS.HS-LS4-1

The combined genetic information of all members of a particular population forms a

• gene pool
• niche
• phenotype
• population

Tags

NGSS.MS-LS4-4

When two populations no longer interbreed, what is the result?

• genetic equilibrium
• reproductive isolation
• stabilizing selection
• recombinant DNA

two species are in different environments and look very similar.  However, that are not closely related (analogous).  Their resemblance is most likely an example of.

• sexual selection
• temporal isolation
• convergent evolution
• divergent evolution

Tags

NGSS.MS-LS4-2

When would convergent evolution occur?

• When organisms share a common ancestor and have homologous structures

• When organisms live in similar environments, don't share a common ancestor, but do share analogous structures

• When organisms become increasingly different due to natural selection

• When organisms experience a change in their environment

Tags

NGSS.MS-LS4-2

Which of the following are examples of common descent involving molecular biology?

• homologous structures
• fossils
• analogous proteins
• universal genetic code in DNA

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2