Other Biology Answers

Which of the antigens listed below likely to be the most immunogenic when injected into a rabbit and explain why?
i) Mouse Collagen
ii) Human Collagen
iii) Rabbit Collagen
iv) A bacterial Toxin

You cross a BALB/c (H-2b) mouse with a C3H (H-2b) mouse. What MHC (Major Histocompatibility Complex) molecules will the F1 progeny express on-
(i) its liver cells and
(ii) its dendritic cells?

1. Describe the relationship between chromosomes, chromatin and DNA. (3 pts)
2. Describe the relationship between chromosome locus and gene. (3 pts)
3. Why chromatin filaments they appear grainy electron microscope? (4 pts)

2. If you hang a well-stocked bird feeder in your backyard for a few weeks, several species of birds will eventually start using it. What kind of learning are the birds exhibiting?

Explains how the chromosomes of disjunction process during meiosis is similar to the act of distributing playing cards.

1. What are the consequences of fertilization of these abnormal gametes? Explains.

2. Explain why non-disjunction occurring during meiosis I is riskier (more consequences) non-disjunction occurring during meiosis II.

3. Explain how the chromosome disjunction process during meiosis is similar to the act of distributing playing cards

how are minerals absorbed in the digestive system??

An example of passive vaccination is when Rh- mothers carrying Rh+ babies are given Rho GAM, humanized antibodies against the Rh+ antigen. Explain why this vaccine does not trigger heme agglutination in the new born.

What is non jacketed sex organ in algae?

1. Explain what is a crossover.
2. Explain why the crossover process that occurs in meiosis ensures genetic diversity among individuals generation to generation.
3. The crossover process is also critical to another phenomenon that occurs during meiosis. Explains.
4. Explain what would happen if it did not produce crossover during meiosis I.