Answer: C. They transport oxygen throughout the body.
It is the primary function of red blood cells.
Hope it helped!
Hydrogen and Oxygen. Better known as H2O
Lac genes are most effectively expressed in presence of Lactose and its analogs when glucose is absent.
Explanation:
A unit of prokaryotic gene expression and regulation,which includes structural genes and regulatory sequences recognized by regulatory gene product is called operon.
<em>Lac </em>structural genes are a part of<em> Lac</em> operon. The <em>Lac </em>operon consists of three, structural genes,an operator and a promoter.The product of Lac operon is involved in the conversion of disaccharide lactose into glucose and Galactose.
Lactose and its analogs are inducers of<em> Lac </em>operon. So, the structural genes are best expressed in presence of Lactose. Glucose and galactose are repressors of lac gene so the genes are repressed in presence of glucose.
Answer: a. epicondyles
Explanation:
Distally the humerus bone is flattened. It exhibit a prominent bony projection on the medial side it is called as the medial epicondyle of the bone. The lateral epicondyle is present on the lateral side of the distal part of the humerus bone.
The grasping and powerful muscles of the forearm are attached with the medial epicondyle. It is typically robust and larger as compared to the lateral epicondyle. The lateral epicondyle is attached with the weaker muscles attached posteriorly.
