The process that causes embryonic cells to produce signals that alter the behavior of neighboring cells is known as
____.
a. contact inhibition
b. ooplasmic localization
c. embryonic induction
d. pattern formation
e. gene splicing
ANSWER: c
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The upper respiratory tract usually has a considerable amount of resident microflora in a healthy adult
Indicate whether the statement is true or false.
Arrange the steps in RNA splicing in order from earliest to latest
A) exon ends are covalently joined together B) components of the spliceosome bind conserved regions in the intron and bring them together in close proximity C) acceptor splice site is cut. D) donor splice site is cut and the end of the intron is joined covalently to the branch site
Studies of invertebrate and vertebrate development suggest that there is a universal body plan for animal development
Indicate whether the statement is true or false
Is made up of collagen and calcium-binding proteins, collagen makes up 90% of bone protein. Makes up one third of organic bone matrix, is secreted by osteoblasts. Consists of ground substance and collage fibers, which contribute to high tensile strength and flexibility of bone.
What will be an ideal response?