Answer:
The quadriceps femoris is a hip flexor and a knee extensor. It consists of four individual muscles; three vastus muscles and the rectus femoris. They form the main bulk of the thigh, and collectively are one of the most powerful muscles in the body.
It is DNA that contains the genetic code that is used to make proteins. In turn, it is the structure of proteins that determines many of the biological functions and physical characteristics of an organism. Genes are segments of DNA. ... During transcription, the two strands of DNA unwind.