Answer all questions and explain if you can. you.
these are the answers i picked but i am not sure if it is right: 1: a, 2: c, 3: b, 4: c
q1.
identical twin sibling would have the same gel electrophoresis pattern
a)true
b)false
q2.
which type of organism would have the largest genome… the most genes in its cells?
a)mosquito
b)salmonella bacteria
c)e. coli bacteria
q3.
microbes that live in our gi tract:
a) would always cause disease or make us sick.
b) are regular members of our gi ecosystem, they live with us and usually cause few problems and probably us.
c) are all genetically the same since they reproduce asexually
q4.
a ‘band’ on an electrophoresis gel is composed of:
a)agarose
b)enzyme
c)dna fragments of the same size
d)dna fragments of different sizes

Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.

What role do traits play in affecting an organisms ability to reproduce? finches

Which of the following is not a potential result of deforestation?