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
Zolol [24]
3 years ago
5

E. coli grown in the presence of lactose, but absence of glucose, will use the enzyme beta-galactosidase to digest lactose. How

are these cells different from cells which are grown in the absence of lactose and presence of glucose
Biology
1 answer:
Triss [41]3 years ago
7 0

Answer: Lac operon

Explanation: the same cells when grown in glucose media utilize the glucose as source if energy by blocking the activity of the enzyme beta- galactosidase. the operator site of the operon is blocked thereby preventing the activity of the collective functional genes.

You might be interested in
Science A
Alex787 [66]

Answer:

1. slump ; 2. mudflow ; 3. landslide

hope this helps!!

5 0
2 years ago
does a cross bridge in a sarcomere of a fast fiber produce the same amount of forces as a cross bridge in a sarcomere of a slow
Zolol [24]

Answer:

Cross bridge in a sarcomere of a fast fiber produce higher amounts of force as compared to a cross bridge in a sarcomere of a slow fiber

Explanation:

When a muscle contracts, a cross bridge is formed between actin and myosin. The sarcomere shortens when a muscle contracts by reforming cross bridge. In general a muscle fiber is of three types – a) slow, b) Fast and c) intermediate.  

The sarcomere of fast fiber generates high force but for a short period of time. On the other hand, sarcomere of slow fiber generate lower amounts of force but this force lasts for a longer period of time. Due to this difference, fast fibers are the predominant fibers in the body

5 0
3 years ago
Hiccups could occur if there was irritation or damage to the ______
Hoochie [10]

There would be hiccups when the motor branches of ventral rami associated with the C3-C5 region of the spinal cord is damage.  Irritation of the phrenic nerve may cause diaphragm spasms called hiccups.  Dorsal and ventral rami are similar in that they both contain sensory and motor fibers.

8 0
4 years ago
Natural selection favors
Effectus [21]

Answer:

D, organisms that survive long enough to reproduce.

Explanation:

C and D are the best answers. Adaptations and skills other than speed and strength contribute to an organism's survival too, so that means it isn't C. Natural Selection is about how an organism must have useful traits to survive to reproductive stage and  successfully reproduce, so it would definitely be D.

Please Mark Brainliest! I need nine to level up.

8 0
3 years ago
Read 2 more answers
Cual es la importancia de la genética y la herencia, desde el punto de vista científico y social?
LekaFEV [45]

Answer:

La genética ayuda a explicar: Lo que nos hace únicos. Por qué los miembros de la familia tienen rasgos en común. Por qué algunas enfermedades, como la diabetes o el cáncer, vienen de familia, La genética médica es una especialidad médica que trata con el diagnóstico y manejo de las enfermedades hereditarias. La finalidad de esta especialidad es brindar una medicina personalizada al paciente y por ende en algunos casos, tratamientos personalizados,los científicos pueden hacer ciertas combinaciones entre genes de diferentes especies, para así solucionar problemas y mejorar el rendimiento económico-comercial de las explotaciones. Se pueden buscar curas a enfermedades genéticas para que las nuevas generaciones nazcan más sanas.

8 0
3 years ago
Other questions:
  • What is the difference between living, non living, and dead?
    12·1 answer
  • According to the fossil record found across this area of the coastal United States, what conclusion can we make about area A? A)
    12·2 answers
  • What is the name of the biggest part of the human brain?
    8·2 answers
  • Help !! :(
    9·1 answer
  • Please help! 12 pts!
    12·2 answers
  • In mice, black is dominant to white color and color is determined by a single gene. Two black mice are crossed. They produce 2 b
    9·2 answers
  • Which of the following is NOT true of proteins? *
    14·2 answers
  • Please help!!!!!!!!!!!!
    5·1 answer
  • I am the Bio-molecule responsible for storing
    14·1 answer
  • About_____________ percent of the solar energy reaching the outer atmosphere is reflected or scattered back into space.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!