Answer:The digestive system uses mechanical and chemical methods to break food down into nutrient molecules that can be absorbed into the blood. Once in the blood, the food molecules are routed to every cell in the animal's body. There are two types of animal body plans as well as two locations fordigestion to occur.
Explanation:
One difference is that DNA is a double strand and RNA is a single strand. Another difference is that sugar in a RNA molecule is ribose, and the sugar in the molecule in DNA is called deoxyribose. Hope this helps, good luck!
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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There are five mechanisms involve in diversity of organisms:
genetic drift, mutation, natural selection, gene flow and non random mating.
Explanation:
Genetic drift: It is a mechanism in which frequency of the allele changes within a population due to random sampling. It causes decrease in diversity in organism and can result in new species.
Mutation: Mutation in the genes is the most important reason of diversity.the change in DNA causes introduction of new alleles. Harmful mutations do not le species evolve by delimiting them from reaching sexual maturity.
Gene flow: The allele flow happens when a new gene is introduced into a population either by immigration or random mating. when two populations of same species share genes, variation occurs.
Natural selection: The favourable traits for survival are transferred to the offspring. It allows them to adapt better to the environment. It allows maintenance diversity of organism.
Non random mating: The mating between the individual with varied genotype will result in genetic variation.