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Biology

Which of the following can be used to make models? thermometer balance computers binoculars

In the genetic code, a) some amino acids are not specified by any codons b) many amino acids are specified by more than one codon c) some codons consist of two nucleotides d) some codons specify more than one amino acid

Some neurotransmitters make it more likely that a neuron will send its message to other neurons, a process known as ________; whereas some make it less likely that a neuron will send its message, a process known as ________.

For certain conditions, the bone may be affected at the upper or lower end such as with avascular necrosis of the femur in the knee joint. When the site is at the joint, report the condition of the joint, not the bone.

Definition: This is the application of a wide range of sciences to answer questions of interest to a Legal system DNA analysis is one component that may be used to place a suspect at a crime scene.

Susan was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the cell and the formation of nuclei at opposite poles of the cell. The cell under examination was most likely a(n):_______.a) plant cell undergoing cytokinesis.b) plant cell in the anaphase stage.c) animal cell in the M phase of the cell cycle.d) animal cell undergoing cytokinesis.e) dividing bacterial cell.

In one mole of calcium fluoride (CaF2), there are two moles of fluorine (F). This is because the chemical formula CaF2 indicates each molecule contains one calcium atom (Ca) and two fluorine atoms (F). Therefore, for every mole of CaF2, there are twice as many moles of fluorine.

In multicellular organisms, cells specialize to perform functions like communication, movement, structural support, or secretion of compounds. Does mitosis vary among different specialized cell types?

In one part of their experiment, Hershey and Chase used radioactive phosphorus to label the DNA of their T2 bacteriophages. What conclusion did they arrive at as a result? A. They found radioactive phosphorus in the bacteria, indicating that DNA was the genetic material. B. Radioactive phosphorus did not transfer into the bacteria, prompting them to continue their investigations with radioactive sulfur.

Describe the structure of a generalized eukaryotic animal cell. Indicate the ways in which a nonphotosynthetic prokaryotic cell would differ in structure from this generalized eukaryotic animal cell.

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