Answer:
B. Dominant for one trait and recessive for the other
Explanation:
using the Punnetts square for the question above, the 9 in the ration refers to a dominant for both traits such as AABB, AaBb.
while the 3: 3 refers to a dominant for a single trait and recessive for one such as AAbb, Aabb, aaBB, aaBb
and the 1 refers to recessive for both traits such as aabb.
Increases genetic variation of the offspring.
The answer is <span>B. In both oogenesis and spermatogenesis, the cells become haploid after meiosis I.
Gametogenesis is a process in which gametes are produced. Oogenesis is a process in which egg cells are produced and spermatogenesis is a process in which sperm cells are produced. Both processes include meiosis.
Original diploid cell (primary oocyte or spermatogonium) has 46 chromosomes. After meiosis I, there are two haploid cells. After meiosis II, there are 4 haploid cells because meiosis II is similar to mitosis. The difference between spermatogenesis and oogenesis is that those 4 cells after meiosis II in spermatogenesis are all sperm cells, and in oogenesis only one of them is egg cell.</span>
Answer: A branched polymer has greater terminal glucose residues in comparison to a unbranched polymer of the same molecular weight resulting in a higher number of terminal glucose residues required to be mobilized when energy is demanded. Enzyme and polymer evolve together to meet the dire need for rapid mobilization.
Explanation:
In comparison to an unbranched polymer, a branched polymer has a more compact and symmetrical molecular conformation with a greater terminal glucose residue. It can be broken down easily when energy is needed. For instance, the branched form of starch, amylopetin, in the small intestine starch is hydrolyzed to form glucose which is converted to biochemical energy and stored for later use.
The gastrointestinal wall is composed of four layers or tunics:
- Mucosa
- Submucosa
- Muscularis mucosa
- Serosa
The innermost tunic of the wall is known as the mucosa or mucous membrane layer. The digestive tract's lumen is lined with it. The mucosa comprises epithelium, a layer of lamina propria, a loose layer of connective tissue, and the muscularis mucosa, a thin layer of smooth muscle.
The mucosa is surrounded by a substantial layer of loose connective tissue known as the submucosa. Blood arteries, lymphatic vessels, and neurons are also present in this stratum. The adventitia is a connective tissue that makes up the digestive tract's outermost layer above the diaphragm. It is referred to as serosa below the diaphragm.
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