CHOOSE THE BEST ANSWER A mother and her two daughters each d…

CHOOSE THE BEST ANSWER A mother and her two daughters each develop ovarian cancer at approximately the same age in their lives. Based on genetic analysis, it is determined that mutations in the BRCA1,  tumor suppressor gene, is responsible for all three instances of cancer. Their specific mutations are presented below (bold base pair). Mother: ATCGTGTCCADaughter A: ATCGTGTCCADaughter B: ATAGTCTCCA Given these data, what is the most likely origin of each daughter’s cancer? Daughter A’s cancer is [answer1] Daughter B’s cancer is [answer2]

TRUE OR FALSE Gaucher Disease is an autosomal recessive dise…

TRUE OR FALSE Gaucher Disease is an autosomal recessive disease. A woman has a child with Gaucher Disease, but she is unsure who the father is. One possible father has Gaucher Disease and the other does not. Based on this information, can the woman be 100% certain who the father is?

CHOOSE THE BEST ANSWER A mother and her two daughters each d…

CHOOSE THE BEST ANSWER A mother and her two daughters each develop breast cancer at approximately the same age in their lives. Based on genetic analysis, it is determined that mutations in the BRCA1,  tumor suppressor gene, is responsible for all three instances of cancer. Their specific mutations are presented below (bold base pair). Mother: ATCGCTCCADaughter A: ATCGCTCCADaughter B: ATCGCTCCA Given these data, what is the most likely origin of each daughter’s cancer? Daughter A’s cancer is [answer1] Daughter B’s cancer is [answer2]

CHOOSE THE BEST ANSWER During DNA replication, our cells use…

CHOOSE THE BEST ANSWER During DNA replication, our cells use the enzyme helicase to “unzip” the two strands that comprise the DNA molecule. To make copies of specific DNA sequences in the lab, scientists use polymerase chain reaction (PCR).  PCR mimics DNA replication in some ways, but not in how the two strands are pulled apart. How are the two strands of DNA unzipped in the lab during PCR?