Answer:
Ultimately what makes each cell different despite the fact that they share the same set of DNA is regulation of gene expression, which regulates the expression of genes. In other words, it determines which genes are turned off and which are turned on in a cell. Gene expression can be regulated in many ways; it's mainly centered around molecules like transcription factors that have the ability to turn certain genes on and off and activators, which promote transcription of DNA.
The short answer to this question is cell differentiation. Differential gene expression results from the genes being regulated differently in each cell type, and differential gene expression leads to different cells.
In fact, from the very beginning of our lives, so to speak, when we're developing from a zygote into an embryo, the egg that makes up the zygote in fact already has a sequential program of gene regulation tat is carried out as cells divide, and this program makes the cell become different from each other in a coordinated fashion.
The administration of prepared antibodies such as those in breast milk is an example of passive immunity.
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What is passive immunity?</h3>
when the prepared antibodies are directly given to protect the body against foreign agents is called passive immunity.
during the initial days of lactation, the yellowish fluid colostrum is secreted by the mother. it contains abundant IgA-prepared antibodies. during breast milk, it contains these antibodies that give immunity to the infant. it fights against the pathogen. these are an example of passive immunity.
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Answer true
Explanation:
they are both nucleic acids .
hello there the answer is c.Because it allows some materials through and prevents others, because dialysis tubing allows substances to be separated on the basis of their size. Molecules S M A L L E R than the pores pass freely across the tubing while l a r g e r molecules are trapped inside or outside
