<span>The child is at risk of cretinism. This is a disease marked by stunted physical and mental growth, mainly due to a lack of thyroid production on the part of the mother. A diet lacking in iodine (as iodide) can also be a culprit for hypothyroidism. The person may suffer from varying degrees of mental and physical impairment, depending on the level (and severity) of the hypothyroidism.</span>
A primary active transport process is one in which <span>molecules move through transport proteins that have been activated by ATP.
</span><span>Primary active transporters, such as the sodium-potassium ATPase (or pump), are activated when ATP is hydrolyzed. This activation allows for the transport of solutes across the plasma membrane against concentration gradients.</span>
Answer:
B. positive
Explanation:
Histones are proteins that bind to the DNA in order to form highly compacted structures named nucleosomes, the basic structural units of DNA packaging in eukaryotic genomes. A nucleosome is a segment of DNA wound around an octamer (8) of histones, i.e., two copies each of the histones H2A, H2B, H3, and H4. These histones are positively charged in order to interact with the negatively charged DNA molecule. During transcription, reducing histone positive charge decreases the interaction between DNA and histones in the nucleosomes, thereby opening the chromatin to favor the access of the transcriptional complex and thus facilitates gene expression.
Answer:
the root system in mesophytes possesses well-developed roots (generally grow deep inside the soil), providing anchorage to the plants. It also allows efficient water and mineral absorption from the surrounding soil.
Explanation:
i hope this helps<3
:)
Answer:
increasing the number of molecules that have sufficient kinetic energy to react.