In a certain plant species, thick-shelled seeds are caused by the dominant allele T. Thin-shelled seeds are caused by the recessive allele t. What is the genotype of an individual with thin-shelled seeds?
A) TT
B) tt
C) Tt
D) tt or Tt
B
Biology & Microbiology
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A. Parenchyma B. Sclerenchyma C. Collenchyma D. Phloem
Biology & Microbiology
Typhus fever, caused by Rickettsia prowazekii,is transmitted by
a) ticks. b) human body lice c) fleas. d) mites.
Biology & Microbiology
Which of the following is a group within the domain Eukarya?
A) Fungi B) Archaea C) Bacteria
Biology & Microbiology
Choose the receptor that is not correctly matched with its function.
A. Nociceptor: transmits signals that the brain interprets as pain B. Baroreceptor: monitors hydrostatic pressure in blood vessels C. Proprioceptor: monitors stretch of muscle fibers D. Peripheral chemoreceptor: monitors the pH of the cerebrospinal fluid E. Chemoreceptor: perceives taste and smell stimuli
Biology & Microbiology