Chapter 4
What is a role of histone proteins?
What is... to pack DNA into clusters?
True or false... endocrine glands have ducts.
False
What is a function of hemidesmosomes?
What is... to attach the basal cells to the basement membrane?
What 3 codons stop protein synthesis?
What is... UGA, UAA, UAG?
Where is thick vs thin skin found?
Which bases are purines?
What is... Adenine and Guanine?
What is the function of a desmosome?
What is... to keep cells from pulling apart (resist mechanical stress)?
What secretion do mixed glands have?
What is... a mix of serous (thin, watery) with mucous?
Fine, unpigmented, hair on a fetus is...
What are the steps of protein synthesis?
What are the three types of RNA and give a function for each.
What is... messenger, transfer, and ribosomal RNA?
Messenger: contains the stand with codons for translation
Transfer: brings a single amino acid to the ribosome
Ribosomal: Place where translation occurs
What makes up gap junctions?
What are... connexons (6 of them)?
What part of the hair is visible?
What is... the shaft?
What layer of the epidermis is the water barrier?
What is the stratum granulosum?
Define genome.
What is... all the genes of one person?
Cerumen is another word for...
What is earwax?
What is a holocrine secretion?
What is... cells accumulate until they rupture?
What is the G zero phase in the cell cycle?
What is... the phase with cells that have left the cycle and do not undergo division for a while or ever again?
What part of the dermis creates fingerprints?
What is the... papillary layer?
What is the difference between introns and exons?
What is...
Introns are removed from mRNA
Exons stay in the mRNA and are joined together.
The start codon ALWAYS is...
What is an example of an endocrine gland?
What is... thyroid, adrenal, pituitary gland, etc...?
What is name of the muscle in hair that causes goosebumps?
What is the growth zone of fingernails?
What is... the nail matrix?