Question

1) The Innocence Project uses DNA fingerprint testing to explore the potential innocence of selected people convicted of crimes. The Innocence Project discovered that the main reason that people are wrongly convicted is because of

Select one:

a) trial judicial procedural errors.

b) police and legal system corruption.

c) mistakes made by the defense legal team.

d) mistakes made in forensic DNA testing.

e) incorrect eyewitness identification.

2) Gene expression in eukaryotic cells requires a change from a highly condensed chromatin state to a less condensed chromatin state to allow the

Select one:

a) ribosome to access the mRNA for translation.

b) transcription factors access to the gene control DNA sequences.

c) spliceosome to be able to remove introns.

d) DNA polymerase enzyme access to the replication control sequences.

e) histone proteins to debind from specific gene promoter regions.

3) In the cell the methyl transferase enzyme functions to control epigenetic gene expression by

Select one:

a) adding methyl groups to proteins located in the nucleaer membrane.

b) adding methyl groups to RNA strands after transcription.

c) transferring methyl groups from ATPs to RNA polymerase molecules.

d) moving methyl groups across cell membranes through special channels.

e) moving methyl groups from one position on the chromosomal DNA to another position on the chromosomal DNA.

4) A human pregnancy resulting from the fertilization of two separate eggs by two separate sperm (in the same uterus) will typically produce

Select one:

a) two genetically different fraternal twins.

b) one baby who is a chimera.

c) two genetically identical twins.

d) two genetically identical fraternal twins.

e) one baby with a uniform genome.

5)

n "A Tale of Two Mice" the coat colors of the genetically identical twin mice are determined by the Agouti coat color gene. The mice with yellow-brown mottled color coats are explained by

Select one:

deletion mutations that disrupt expression of the Agouti genes in half of the cells.

half of the cells having methylated Agouti genes and half of the cells having unmethylated Agouti genes.

a deletion mutation that appears in some cells but not other cells.

each cell carrying a mixed genome with half the chromosomes methylated and half the chromosomes completely unmethylated.

patches of cells that over-express the Agouti genes to differing levels giving rise to the mottled coat appearance.

Answer 1

1, answer

a) trial judicial procedural errors.

2. answer Looser configuration is important because it permits transcription to take place

b) transcription factors access to the gene control DNA sequences.

3. answer Methylation modifies the function of the DNA. When located in a gene promoter, DNA methylation typically acts to repress gene transcription.

e) moving methyl groups from one position on the chromosomal DNA to another position on the chromosomal DNA.

4. answer both sperm will have a separate set of chromosome

a) two genetically different fraternal twins.

5. is quite confusing i could not answer