Natural Selection is the process of those who have not evolved over time to be picked off by either predators or the environment. Evolution is the result of a species being altered in some way to adapt to their new environment to survive.
Answer:
By preventing the synthesis of DNA halting cell growth.
Explanation:
Fluorouracil and methotraxate prevent the synthesis of the neucleoside Thymidine thus preventing DNA replication and elongation. Methotraxate has a structure analogous to Folic acid which is important for thymidine synthesis. Thus, it acts as a competitive inhibitor on dihdrofolate reductase an enzyme that is essential for tetrahydrofolate formation, a folic acid derivative.
Fluorouracil acts by inhibiting thymidylate synthase which catalyses an essential step in Thymidine synthesis.
Every cell in your body has the same DNA.
Answer: 50% will be purple
There’s a 50% chance the genes will be heter*zygous (Pp, purple flower) and 50% chance they will be hom*zygous recessive (pp, white flower)
Punnet square drawing attached
Answer:
The glenohumeral joint is more mobile, making it less stable. (Ans. C)
Explanation:
Shoulder joint is composed of three bones shoulder blade (scapula), collarbone (clavicle), and upper arm bone (humerus) Shoulder joint or glenohumeral joint is classified as a socket joint and synovial ball structurally and functionally divides as a multiaxial joint and diarthrosis. Its helping in the articulation between the glenoid cavity present on the shoulder blade (scapula) and the upper arm bone (head of the humerus).
Because of the presence of very loose joint capsule that gives a limited interface of the scapula and humerus. So, it is known for the most mobile joint present in the human body.