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Ierofanga [76]
3 years ago
10

An operon encodes enzymes for making an essential amino acid and is regulated like the trp operon. Which of the statements is tr

ue?
A.) the amino acid inactivates the repressor
B.) the amino acid acts as a corepressor
C.) inducible enzymes are produced
D.) the repressor is active in the absence of the amino acid
Biology
1 answer:
xxTIMURxx [149]3 years ago
7 0
"The <span>amino acid acts as a corepressor" is the statement among the choices given in the question that is true. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your great help.

</span>
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3 0
3 years ago
As with all multicellular organisms, homeotic genes in plants control morphogenesis (how the tissues and organs of the plant are
joja [24]

Answer:

a. True

b. True

c. False

d. True

e. False

f. False

g. True

Explanation:

The homeotic genes refer to evolutionarily conserved genes that modulate the development of different structures in organisms of the same groups (in this case, plants).  Moreover, homeobox genes are genes that encode transcription factors involved in the regulation of development in eukaryotic organisms. The knotted1 (<em>kn1</em>) gene is a plant homeobox gene is a member of the <em>kn1</em> homeobox (<em>knox</em>) gene family, which is responsible for maintaining indeterminacy and preventing cellular differentiation. In maize, <em>kn1</em> plays a key role in maintaining the cells of the shoot apical meristem in an undifferentiated state, being mainly expressed in shoot meristems during postembryonic stages of shoot development. It has been observed that maize mutant plants where <em>kn1</em> is ectopically expressed (i.e., in tissues in which this gene is not normally expressed) exhibit proximal-distal patterning defects.

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3 years ago
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