<h2>a) is the correct option </h2>
Explanation:
The extracellular domain of the transmembrane receptor protein acts as binding site for primary messenger molecule whereas the transmembrane domain holds the receptor within membrane and the cytosolic domain has intrinsic tyrosine kinase activity, all these helps in proper cell signaling
If because of any mutation there is change in shape of the extracellular domain then that molecule that normally binds to the receptor protein will no longer attach hence cellular response will be deactivated
The first one because ladybugs r apart of the environment and r helping to keep aphids under control
Please mark brainliest
the only flying mammal is a Bat
The endosymbiotic theory hypothesizes that mitochondria and chloroplasts were formed when <u>prokaryotic </u>cells were engulfed by larger cells that were precursors to <u>eukaryotic </u>cells.
prokaryotic ; eukaryotic
Answer:
1. one long double helix.
Explanation:
- The Eukaryotic chromosome consists of the DNA protein structural complex that is formed by a manner and permits the large amounts of the DNA to be stored in the nucleus and structure to form a double standard helix made up of the double nucleic acid molecules and exists as a complementary pair.
