He labeled the protein of bacteriophages with radioactive sulfur and their DNA with radioactive phosphorus. The bacteriophages were allowed to infect bacteria.
The correct answer is option (a) Scanning tunneling microscope.
Microscopes are used to see the objects at molecular level. Scanning tunneling microscope( STM) is a type of optical microscope that uses optics(light) and lenses to see the enlarged size of the object. This microscope use a small metal tip under a high voltage. when this tip of microscope is brought close to the metal, the metallic tip of microscope draws electrons from the atom (metal) to be observed. This generates an electric current. There is a computer system attached to the microscope that detects the change in the electric current. Computer plots the change in position of atoms in metal.
Dog, cat,
Have hair
warm blooded
Answer: C, Appears to be genetically almost inactive.
Sources: https://answers.yahoo.com/question/index?qid=20110412082808AAEciMo
and
https://answers.yahoo.com/question/index?qid=20111027121958AA1U5VE
hope I get brainiest answer
Answer:
They make a zygote.
Explanation:
When they come together it is the first step into making a Baby.
