The 140 kbp genome containing many short repeats, ribosomal RNA genes, one RNA polymerase gene (rpo) and one RubisCO gene (rbcL) is most likely from a(n)
A) plant.
B) autotrophic bacterium.
C) chloroplast.
D) autotrophic archaeon.
Answer: C
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Sensory receptors in muscles and joints that detect ________ never adapt
Fill in the blank(s) with correct word
A student designed an experiment to see if plants grow better when watered with a sugar solution. He divided the plants into six groups, measured the initial height of each plant, and calculated the average height for each group. Once a week for two months, he watered the plants in each group using a different sugar solution for each plant group. At the end of two months, he measured the final height of each plant and calculated the average height for each group. The student’s data are shown in the table below.
Which of these statements explains why the plants in Groups E and F died? A. The high sugar content caused too much water to move out of the root cells. B. The high sugar content caused too much water to move into the root cells. C. The high sugar content prevented the plant from capturing energy. D. The high sugar content clogged the pores in the cell membranes
The Pap test for cervical cancer involves microscopic examination of cervical cells for cancerous cells. A new, rapid diagnostic test to detect human papilloma virus (HPV) DNA before cancer develops is done without microscopic exam. The steps involved in this FastHPV test are listed below. What is the second step?
a. Add an RNA probe for HPV DNA. b. add enzyme substrate. c. Add enzyme-linked antibodies against DNA-RNA. d. Lyse human cells. e. The order is unimportant.
Cystic fibrosis (CF) is a disease caused by a recessive allele, and the disease appears only in the homozygous recessive genotype. Two parents do not have cystic fibrosis, but they produce a child with this disorder. Fully explain what has occurred,
using the appropriate terminology and diagram (you must provide this diagram). What will be an ideal response?