The anterior pituitary gland produces hormones and releases them into the blood.<span />
Answer:
conservative replication model
Explanation:
In their experiment, Meselson and Stahl found that the DNA duplexes present after the first round of replication had intermediate density. This occurred since the semiconservative process of DNA replication of one DNA molecule (having both strands with 15N) forms two DNA duplexes each with one parental strand (15N) and one newly formed strand (14N).
If they had found two duplexes of two different density, this would have supported the conservative replication model. In this case, the DNA replication of the parent DNA molecule would have formed two DNA duplexes. One DNA molecule would have both the parental DNA strands with 15N while the other DNA duplex would have both newly formed strands with 14N.
Explanation:
Respiration..
the act of respiring; inhalation and exhalation of air; breathing. Biology. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells, and the oxidation products, carbon dioxide and water, are given off.
Dd,Bb,Tt,Fr are the answers
GTP must bind to the "α" subunit in order for a G protein to be activated as a consequence of hormone binding.
Discussion:
- Over 40 years ago, regulatory GTPases triggered by rhodopsin and beta-adrenergic receptors were initially identified as heterotrimeric G - proteins alpha subunits (G).
- The family's three prototypical members—Gs, Gi, and transducin (Gt), were purified and enzymatically described within ten years. Heterotrimeric G - proteins alpha subunits (G) are a distinctive type of Ras superfamily guanine nucleotide binding proteins22.
- The tertiary and quaternary shape, activation and signaling processes, and kinetic characteristics of G make them special. G subunits, like all other representatives of the Ras superfamily, consist of a six-stranded homologous core with helices connecting the majority of the strands in succession.
Therefore the correct choice is an option (A), i.e., GTP and α.
The complete question is:
Activation of a G protein in response to hormone binding requires binding of _____ to the _____ subunit.
A) GDP; B
B) GTP; a
C) GDP; Y
D) GTP; B
E) GDP; a
Learn more about protein here:
brainly.com/question/17095120
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