1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ivahew [28]
3 years ago
7

When is gene expression blocked in the lac operon system?

Biology
2 answers:
PilotLPTM [1.2K]3 years ago
8 0
The repressor protein blocks the genes from making mRNA.
elena-s [515]3 years ago
4 0

The depressor protein blocks the genes from making mRNA.

Absolutely sure!

You might be interested in
1: Energy is conserved in ecosystems. true/false
maxonik [38]

Answer:

what happens inside a nucleus in interphase

4 0
2 years ago
Read 2 more answers
The walls of the alveoli are composed of two types of cells
yuradex [85]
Alveoli walls are composed of Type 1 and Type 2 alveolar cells
6 0
3 years ago
Which specializes organelle is show ?
alexdok [17]
The “powerhouses” of the cell, mitochondria are oval-shaped organelles found in most eukaryotic cells. As the site of cellular respiration, mitochondria serve to transform molecules such as glucose into an energy molecule known as ATP (adenosine triphosphate).
4 0
3 years ago
Read 2 more answers
If a grandfather and grandchild are the only two with a genetic disorder, the disorder must be __________.
Anna35 [415]

The disorder where the grandfather and the grandchild are affected is related with the X chromosome and is called Sex linked or X linked disorder.

<h3><u>Explanation:</u></h3>

All the sex linked disorders are recessive in character i.e the normal allele is dominant over the mutated allele. In females, there are 2 X chromosomes, so the mutated allele is only expressed when there are both the mutated alleles, else its masked by the dominant normal allele. But in males, there's only one X chromosome, so if a mutated allele is present, it's readily expressed.

If the Grandfather is diseased, then he must have that mutated allele in X chromosome. Through reproduction, its received by the mother, but she is normal because the other allele received from grandmother was normal. But mother has one of the X chromosomes with mutated allele, which is received by the grandson who again becomes diseased. So the disorder must be X linked disorder

7 0
3 years ago
Bacteria reproduce by dividing in two. If the bacteria has a dominate trait of causing elevated temperature in the recipient cel
nasty-shy [4]

Bacteria multiply by binary fission, which results in exact copies (clones) of the parent cell. There for B, 100 would be the answer.

7 0
3 years ago
Other questions:
  • ​____ is the initial treatment of choice for children and adolescents with anorexia who are living at home.
    5·1 answer
  • Based on Earth's geology what
    6·2 answers
  • How does being small help cells survive?
    6·2 answers
  • What happens in the mitochrondria
    11·1 answer
  • What telescope was launched in 1990 and takes very detailed pictures of the universe?
    11·1 answer
  • 1. What is DNA replication
    12·2 answers
  • Large ears Survival Advantage
    11·2 answers
  • Please help I’ll give brainist! :)
    9·1 answer
  • Is biological control effective than chemical control of crop protection?
    14·1 answer
  • Macth each description with the correct process
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!