<span> Gastrin is produced by
G cells in the pylorus and the duodenum. Gastrin stimulates the secretion of
both parietal and chief cells. It causes the gastric glands to increase their
secretory activity and stimulates gastric motility. Saliva, food, and gastric
juice are mixed together in the stomach to form chyme. The stomach serves as a
reservoir for food before release into small intestine. Gastric juice is
secreted into the lumen of the stomach. Gastrin is secreted into the
bloodstream.</span>
Explanation:
Echinoderms belong to a very diverse phylum of marine-dwelling invertebrates, which have integral roles in salt water aquatic ecosystems. They comprise brittle stars, starfish, sea-urchins, sand dollars, and sea cucumbers. They have distinct characteristics, they:
- are only marine animals.
- show bilateral symmetry as larvae, and radial symmetry as adults
- show three layers (germ)
- show complex-level organisation, i.e. organs are seen
- have a fluid-filled body cavity
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Correct option a) (A) One-quarter will carry the two normal chromosomes, 4 and 12, one-quarter will have only the two translocation chromosomes and no normal chromosomes 4 and 12, and half will have one normal and one trans-located chromosome.
Genetic carrier screening , prenatal screening for aneuploidy and prenatal diagnostic testing have expanded dramatically over the past two decades. The presence of chromosome abnormalities in couples with repeated spontaneous abortion is known even if the phenomenon is far from a complete assessment.
If gene on chromosome or on different chromosomes the recombination frequency 50% . Inheritance of alleles at the two loci are independent.One partner is carries of such balanced translocation have increased risks of infertility , and the chromosomal abnormal offspring.
Genetic counselor should answer to their consultants is to estimate the probability of recurrence of unfavorable pregnancy outcomes among their future pregnancies. The occurrence probability for individual carriers of two different autonomy- Autosome translocation with breakpoints at different positions by stengel- Rutkowaski et.
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Answer:
No, not according to any sciences (unless you mean aliens as in immigrants)
Explanation: