The answer is false.
Monocytes do not secrete antibodies. Monocytes are a type of leukocytes which are made in the bone marrow and travel through the blood to tissues where can be differentiated into macrophages and dendritic cells. Functions of monocytes are:
<span><span>· </span>phagocytosis,
</span> <span><span>· </span>antigen presentation,
</span> <span><span>· </span><span>cytokine production.</span></span>
When the upper water layers warm in the summer months, they become separated from deep water by a transition zone known as a thermocline. In a thermocline, the temperature decreases rapidly with small increases in depth. This phenomenon linking temperature change with depth is called temperature stratification.
Answer:
50% G+C will have a higher Tm
Explanation:
The Temperature of Melting (Tm) refers to the temperature at which 50% of double-stranded DNA (dsDNA) is changed to single-standard DNA (ssDNA). In the double helix of DNA, Adenine bases always pair with Thymine bases through two hydrogen bonds, whereas Guanine bases always pair with Cytosine bases through three hydrogen bonds. In consequence, a DNA molecule containing a higher GC content is more stable than another DNA molecule containing a lower GC content. The Tm can be calculated as follows = 2 °C(A + T) + 4 °C(G + C) = °C Tm (this equation is useful for oligonucleotides of 14 to 20 base-length).
Thyroid gland produces:
1) T3<span> (</span>triiodothyronine<span>)
2) </span>T4<span> (</span>thyroxine<span>).
3) T</span>hyroid stimulating hormone<span> (</span>TSH<span>)
Hope this helps!</span>