True/false, if false explain why
Meristemoid cells secrete EPFL proteins that signal adjacent protodermal cells to NOT differentiate into meristemoid cells.
True.
Members of the EPFL family: EPF1 and EPF2, are stomatal lineage-specific factors. Known to repress stomatal development in specific stages when secreted by MMC to neighboring cells
(Additional Reference study: https://doi.org/10.1093/jxb/erw447 )
True/false, if false explain why Meristemoid cells secrete EPFL proteins that signal adjacent protodermal cells to...
True/false, if false explain why Synergids secrete chemoattractants called LUREs, which guide pollen tubes to embryo sacs.
True/false, if false explain why An S-haplotype is a type of stigma with papilla cells that adhere with only one type of pollen.
Which of the following are functions of sustentacular cells? Secrete proteins that help regulate sperm production Cells that carry half of an organism's genetic material Provide nutrients for developing germ cells Produce testosterone in response to luteinizing hormone
Why does the cell incorporate signal-relaying junctions and channels between two adjacent cells; in your answer, relate this to calcium flux activities that are triggered to release due to de/re-polarization events and cross-communication between?
Can we use bacterial cells to produce human proteins? Why? Explain. Which type of cells would be better for protein expression of human proteins? Mammal or bacteria cells? Why?
Which of the following cells can differentiate into plasma cells, which secrete antibodies, or become memory cells? (1 POINTS) a. Antigen presenting cells d. macrophages c. B-cells b. T-cells
Helper T cells: Multiple Choice o secrete perforin when activated. o convert to plasma cells after they are activated. o secrete antibodies that target specific antigens. o do not interact with MHC proteins. o O are activated by antigen presented with MHC Il proteins
In three paragraph please explain this question. Why are proteins on the surface of cells so important? What roles do these proteins play?
True/false, if false explain why A pollen tube is compatible with a pistil if the pollen tube has the same S-haplotype as the cells of the pistil.
true or false, please give explaination TRUE/FALSE. Explain why the answer is true or false. 3) True or False: Assume that a species has a diploid chromosome number of 24. The term applied to an individual with 25 chromosomes would be triploid. 4) True or False: Inversions suppress crossing over by providing a chemical imbalance because of breakpoints within certain genes. e or False: Individuals with familial Down syndrome are trisomic and have 47 chromosomes. 6) True or False: An...