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
taurus [48]
3 years ago
9

What change takes place in the cell membrane if a signal molecule causes a transport protein to open?

Biology
1 answer:
mamaluj [8]3 years ago
4 0

Answer:

change in chemical reactions

You might be interested in
Hurrrryyyy!!!<br> Describe what a moraine is made of and explain how this glacier feature forms.
Elenna [48]
Moraines are made of till. They form when a glacier stays in one place for a long time and deposits a pile of till, then it retreats and leaves a moraine.
8 0
3 years ago
Read 2 more answers
The site of red blood cell production in an adult is the __________.
faust18 [17]
The main site of red blood cell production is the liver.
8 0
3 years ago
Read 2 more answers
A locus that affects susceptibility to a degenerative brain disease has two alleles, V and v. In a population, 16 people have ge
Pie

Answer:

Yes, the population is evolving

Explanation:

Hardy-Weinberg equilibrium states that a population is not evolving if it is in hardy weinberg equilibrium as the alleles frequency do not change over time in generations.

In mathematical equation, the genotype frequency will be -P²+2Pq+q²=1 and allele frequency will be p+q=1, where p = dominant allele and q will be recessive allele.

In the question, since the observed genotype are-

P² - VV= 16

2Pq- Vv- 92

q²- vv- 12

<u>1. Calculate allele frequency</u>

Now we will calculate if the expected value is same or close or not.

We will calculate allele frequency

Population has 120 individuals which means it has - 240 alleles.

In which V (p) will be- 32 +92= 124 allele

p- dominant allele/ total allele=  124/ 240 = 0.52

P= 0.52

q will be 1-0.52= 0.48

<u>2. Expected genotype frequency</u>

Now we will calculate expected genotypic frequency.

P²- 0.52 X 0.52= 0.27

2Pq = 2 x 0.52x 0.48 =  0.5

q²= 0.48 x 0.48 =  0.23

<u>3. Expected progeny </u>

P²= 0.27 x 120= 32 VV

2Pq= 0.5 X 120= 60 Vv

q²= 0.23 x 120= 28 vv

Since the observed value is not equal to the expected value therefore the population is not in Hardy- Weinberg equilibrium and the population is evolving.

Thus, Yes, the population is evolving is correct.

4 0
3 years ago
Read 2 more answers
Garden plants are eaten by snails, which are eaten by birds, which are eaten by the household cat. What happens to the other mem
Alex17521 [72]

The correct answer is (d) The number of plants and birds increases and the number of snail decreases.

Green plants are eaten by snails, snails by birds, and birds by household cat. If cat is removed from the cycle then the number of birds will increase which will decrease the number of snail in the environment.  As there are large number of birds there will be a great demand of snails as a food for birds. Then there will be a decrease in the number of snails because of over eating of snails. There will be an increase in the number of garden plants because very less number of snails are left that will eat garden plants.

8 0
3 years ago
Read 2 more answers
If a diploid cell contains 48 units of DNA in its nucleus at the beginning of meiosis, how many units will be present in the hap
Aleks [24]
The answer to this problem is b
5 0
3 years ago
Read 2 more answers
Other questions:
  • A biologist studying a desert ecosystem observes that the population of a lizard species increases following particularly hot, d
    8·1 answer
  • Evolution that occurs over a long period of time is called
    10·1 answer
  • What is the effect of resources (which are limited) on unlimited human population growth?
    6·1 answer
  • Gregory wants to make a hole in a flat piece of wood. He places object Y on the piece of wood, and then object X on top of it.
    12·1 answer
  • Stomatas are pores on the plant leaf that control the flow of gases between the environment and the plant cells. This process he
    10·1 answer
  • Select all of the following that plants
    7·1 answer
  • Plzz help will give brainiest. What pair of chromosomes do not go through crossover
    12·2 answers
  • Pls fast
    8·1 answer
  • sentence supports the statement that complex, multicellular organisms are made up of specialized cells that each perform differe
    11·2 answers
  • Dna can undergo many types of modifications. one of these is methylation. which bases are methylated more often in human dna?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!