Heterotrophic stramenopiles that grow as a mesh of nutrient-absorbing filaments with cellulose cell walls are known as _______.
A. diatoms
B. brown algae
C. fungal molds
D. water molds
E. kelp
Answer: D
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BRCA1 is a gene involved in repair of double-stranded DNA breaks. Mutant forms of this gene are linked to a substantial proportion of familial breast cancers
A woman who inherits a certain allele of the gene has about a 60-80% chance of getting breast cancer, as well as an elevated chance of getting ovarian cancer, in her lifetime. a. Why don't a higher percentage of women with the mutation get breast cancer? b. How would the breast cancer inheritance caused by BRCA1 be described in Mendelian terms?
Which region of the lac operon would you target if you want to disrupt the -10 and -35 consensus sequences?
A) lacZ B) lacY C) lacI D) lacP E) lacO
Compare and contrast DNA and RNA. Include the similarities and differences of their chemical
structures, as well as their roles within the cell, in your comparison. What will be an ideal response?
The microbe which causes primary atypical pneumonia is
A) Bordetella pertussis. B) MERS. C) Chlamydophila pneumoniae. D) Mycoplasma pneumoniae. E) SARS.