Answer:
Here ya go ;) Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio (base pair rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine.
look similar to, but not exactly the same as, their parentsThe offspring have genetic material from both the mother and the father.
Answer:
The intracellular molecule produced by the receptor ligand complex is called Second messenger.
Explanation:
Receptors are membrane bound proteins which bind to the ligands which are also called first messengers and cause cellular changes. These intracellular changes are mediated by second messengers such as proliferation, differentiation, migration, apoptosis, transcription, contractions etc. They are specific for specific first messengers such as homones and growth factors. They relay the signals between the ligands to their target molecules in the cytosol or nucleus. Most common second messengers are cAMP, cGMP, DAG, IP3.
Signal amplification by second messenger can be explained by the example of IP3 which cayses the release of Calcium ions from the intracellular stores and cause contractions.
Answer:
<u><em>Race</em></u> refers to the highly influential but mistaken identity that one or more genetic traits can be used to identify distinctive and exclusive categories of people.
Explanation:
Race refers to the discrimination of individuals depending on distinctive features such as colour etc.
The discrimination on the basis of race was very common in the past ans still be observed today in many tribes, places and countries. For example, the discrimination of the african- american race from the white americans was common in the past ans is even common today.
Answer:
1. Median cubital vein A superficial vein, most commonly used for venipuncture, it lies over the cubital fossa and serves as an anastomosis between the cephalic and basilic veins. 2. Cephalic vein Shown in both forearm and arm, it can be followed proximally where it empties into the axillary vein.
Explanation: