Which of the following best compares conifers and anthophytes?

a. they are both angiosperms, but conifers produce flowers, and anthophytes produce flowers and fruit
b. they both produce seeds, but conifers are nonvascular, and anthophytes are vascular
c. they are both gymnosperms, but conifers produce cones, and anthophytes produce seeds
d. they are both vascular plants, but conifers are gymnosperms, and anthophytes are angiosperms

Explain the difference between incomplete dominance and codominance

Spirochetes have a twisting and flexing locomotion due to appendages called

You are studying several alleles of an e. coli helicase gene. one allele, called rsr, confers resistance to rs2014, an antibiotic that works by inhibiting helicase activity. bacteria with the rss allele are sensitive to rs2014. another allele, called ts-, produces a temperature sensitive mutation of the helicase. in bacteria with the ts- allele, helicase is inactivated at 42 °c but functions normally at 37 °c. helicase functions normally at both temperatures in bacteria with the ts allele. you obtain the following data while testing four strains of e. coli at different temperatures and doses of rs2014. each number represents the percentage of maximal dna synthesis. based on this data, assign the appropriate genotype to strains a–d in the spaces provided