<u>oxides</u> and <u>hydroxides</u>, as they have the highest chemical composition with different criteria's.
<span>If the genotype is PP then when crossed with pp all the offspring will be Pp and purple.
If the genotype is Pp then when crossed with pp 50% of the offspring wil be Pp (purple) and 50 % will be pp (white).
These results will allow you to see whether the purple is homozygous (PP) or heterozygous (Pp).</span>
Answer:
1. Stimulus
2. Receptors
3. Control center
4. Effector
5. Repeats as long as needed
Explanation:
Lactation during breastfeeding is regulated by positive feedback. As the baby starts sucking, the stimulus (suckling) is sensed by the receptors present in the skin of mammary glands. These signals are carried to the control center, the hypothalamus. Signals are sent to the posterior pituitary to release oxytocin hormone in the blood. The hormone reaches its target organ, mammary glands and stimulates the ejection of milk. Therefore, milk ejection is stimulated by hormone oxytocin in response to suckling.
Since the stimulus, suckling serves to intensify the milk ejection, the regulation is positive feedback. Here, change in a condition triggers a response to intensify the change, not to counteract it.
Answer:
A. Because of base pairing, each strand has all the information to serve as a template for the other strand.
Explanation:
Deoxyribonucleic acid (DNA) is a molecule composed of two antiparallel polynucleotide chains. This double helix serves as a template for its own duplication. DNA templating refers to the process by which a portion of the DNA molecule in a single strand is used as a template to be copied by complementarity base pairing. According to base-pairing rules, Adenine (A) always pairs with Thymine, while Guanine (G) always pairs with Cytosine (C). These nucleotide bases are each linked with their complementary base by hydrogen bonding. When base pairs separate, the hydrogen bond acceptor and donor groups of each strand allow the addition of nucleotides and synthesis of new DNA strands, a process catalyzed by specialized enzymes (DNA polymerases).