What causes the bonds to break in a chemical reaction

Classify each of the following as homozygous dominant, heterozygous, or homozygous recessive. A. Gg B. rr C. TT D. Does not include any dominant alleles E. Does not include any recessive alleles

Tetrodotoxin, also known as "zombie powder" is synthesized by the puffer fish as a defense mechanism. Tetrodotoxin's mechanism of action is to block voltage-gated sodium (Na) channels in motor neurons, thus preventing them from transmitting action

Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally.

The sun is composed of what prevent of matter

4.) The chromosomes in the karyotype also show some light and dark bands. What do you think these "regions of light and dark bands are?

Which of the following defines lumen? a. The opening between the duodenum and jejunum b. The intestinal enzyme that hydrolyzes dietary nucleic acids c. The conduit from the mouth to the stomach d. The continuous inner space within the GI tract e.

Is there a way to detect down syndrome/trisomy 21 in heterozygous carriers before they reproduce (become parents) ? Is there a way to detect it in a fetus? In a newborn child?

In peas, purple flowers (P) are dominant to white flowers (p), and tall plants (T) are dominant to short plants (t). A short plant with white flowers would have the genotype

What bases are are found in RNA and DNA

One of your classmates says that the pollution from his car doesn't harm the environment because the exhaust is warm and warm air will rise out of the atmosphere since it is less dense. Is your friend correct? Why or why not?