Answer the following statements true (T) or false (F)
1. Photosynthesis in plants occurs in chloroplasts.
2. The Endosymbiosis Theory best describes the origins of peroxisomes in eukaryotes.
3. In eukaryotes, most proteins contain short stretches of amino acid sequences called sorting signals which direct the protein to the correct cellular location.
4. The first step in cotranslational sorting is the peptide is directed to the endoplasmic reticulum.
5. Chaperones keep proteins destined for the mitochondrial matrix in their three dimensional active structure.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. FALSE
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Which of the following is a disease specifically caused by an autoimmune response against acetylcholine receptors?
A) Grave's disease B) myasthenia gravis C) systemic lupus erythematosus D) Hashimoto's thyroiditis E) celiac disease
One of the steps in converting normal cells into cancerous cells may be the ____________________ and silencing of both copies of the NOEY2 gene
Fill in the blank(s) with correct word
In dosage compensation, females have the same amount of X-linked gene products as males. This is
brought about by A. the loss of one X chromosome from all somatic cells in females. B. the accelerated production by genes on the Y chromosome. C. the lowered rate of synthesis by genes on the X chromosome. D. the inactivation of one X chromosome in all somatic cells of females. E. none of these.
An archegoniophore is found in certain liverworts
____________________ Indicate whether the statement is true or false.