What effect does a faulty CF gene have in the lungs?Group of answer choicesThe production of thick mucous that "clogs" the lungsA reduction in the occurrence of respiratory infectionsThe lungs are unaffected when the CF gene is faultyA lack of digestive enzyme secretions

Multiple Choice QuestionWhich genetic disease can impair airflow and oxygen delivery due to a dramatic increase in mucus production?Multiple choice question.muscular dystrophyphenylketonuriacystic fibrosissickle-cell anemia

One type of mutation in the CFTR protein prevents the transport of chloride ions through the channel. What is most likely to be observed in the lungs of patients with this mutation?A. Dehydrated epithelial cellsB. Dehydrated mucusC. Mucus with excess waterD. Mucus with a high electrolyte concentration

Where is the CF gene normally expressed?Group of answer choicesMany tissues throughout the bodyOnly in the lungsOnly in the lungs and the pancreasIt is not normally expressed (it is only expressed in CF patients)

The product of the cystic fibrosis gene affects the functioning of several different organs. Males with the disease may be infertile because the vas deferens did not develop properly early in life. Males also have a buildup of sticky mucus in the lungs as their disease progresses. An explanation for why these two different effects can be caused by the same gene is that the cystic fibrosis gene is ______.Multiple choice question.only expressed in adulthoodexpressed at different stages of developmentonly expressed in early embryonic life

Cystic fibrosis is caused by the inheritance of recessive alleles depicted by a lower case ‘c’. Which of the following genotypes would result in an individual being affected by the condition?CFCcCCcc2What is the term for a person who has inherited a recessive allele for a disease, but is not affected by the condition? MutatorCarrierIncubatorMessenger3What is the genotype of a carrier for cystic fibrosis?  CFccCCCc4What percentage of the offspring of two cystic fibrosis carriers are likely to be affected by the condition?50%25%75%100%5The inherited disorder Huntington’s disease is controlled by a dominant allele, H. If one parent has a homozygous dominant genotype, what percentage of the offspring will inherit the condition?100%50%25%75%6If both parents are heterozygous for Huntington’s disease, what percentage of their offspring will inherit the condition?50%75%100%25%