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steposvetlana [31]
3 years ago
13

Anonymous 4 years ago

Biology
2 answers:
Lynna [10]3 years ago
8 0
Awesome! great job =)
Rufina [12.5K]3 years ago
3 0

Answer:

1. C

2. D

3.B

4.A

Explanation:

1. Gene regulation in eukaryotes (1 point)

usually involves operons.

is simpler than in prokaryotes.

answer: allows for cell specialization

includes the action of an operator region

This occurs because is regulated by repressors and transcriptional activators

2. Specialized cells regulate the expression of genes because they (1 point)

do not want the genes to become worn out.

cannot control the translation of proteins.

do not carry the complete genetic code in their nuclei.

do not need the proteins that are specified by certain genes.**

3. What is one difference between transcription factors and miRNA (interference RNA)?

Transcription factors work at halting transcription, while miRNAs work at destroying the products of transcription

miRNA are transcribed by RNA Riboxyanucleicacid

Why does it take only a few homeotic genes to control the development of a eukaryote? (

because each homeotic gene begins a cascade of events that leads to the formation of a specific body part

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