________ and _________ form the backbone of strands of DNA
Correct Answers sugars and phosphates
codominance Correct Answers two alleles share dominance
-an example is blood types
complement Correct Answers proteins activated by binding
antigen
-attract phagocytes
-mark cells for destruction
-destroy bacteria
-trigger inflammation
cytoplasm Correct Answers consists of semi-fluid material and
organells
DNA Correct Answers hereditary information found within a
distinct nucleus in eukaryotes
-found floating around in prokaryotes
DNA-> RNA --> protein describes what process? Correct
Answers protein synthesis
effector cells Correct Answers cells ready to fight now
functions of the plasma membrane? Correct Answers 1.
separates internal and external environment
2. controls movement of materials in and out of cell
3. allows cell to interact with other cells
,give a steep by steep run down of the adaptive immune response
Correct Answers 1. immune system recognizes foreign antigens
2. B and T cells with matching receptor are activated
3. signals from helper T cells stimulate cell division and
antibody production
4. memory cells are left over in case body encounters the
invader again
how and what did Rosalind Franklin discover? Correct Answers
she was the first to discover the helical structure of DNA
through X-ray crystallography
meiosis for sperm results in 4 mature, haploid male gamers
while meiosis for egg results in... Correct Answers 3 polar
bodies and one mature haploid
Meiosis I takes a _____ cell and makes _____ cells Correct
Answers diploid, haploid
Meiosis II results in the separation of the __________ Correct
Answers sister chromatids
memory cells Correct Answers cells that have immunity to
figure infections
-lasting record of receptor that matched a specific antigen
Mendel's segregation of the alleles occurs at... Correct Answers
the separation of homologous chromosomes
, Mendel's theory of independent assortment occurs at what point
Correct Answers random assortment of each pair of
homologous chromosomes (metaphase I)
-pairs of homologous chromosomes line up randomly
mitosis produces genetically identical ____ cells
meiosis produces ______ cells Correct Answers diploid
haploid
naive cells Correct Answers cells that have never been bound
antigen
organelles Correct Answers tiny compartments within a cell
that have specific functions
RNA Correct Answers stores information like DNA and
catalyzes reactions (like proteins)
the bases of the two strands are bonded together by what?
Correct Answers hydrogen bonds
what are antigen receptors? Correct Answers proteins that bind
antigens
what are antigens? Correct Answers molecules that trigger
immune response
what are autosomes? Correct Answers chromosomes from 1-22,
do not vary between sexes