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
frosja888 [35]
3 years ago
10

How can mutations be helpful? Give 2 examples

Biology
1 answer:
RSB [31]3 years ago
6 0
Having two copies of the mutated genes cause sickle cell anemia, but having just one copy does not, and can actually protect against malaria - an example of how mutations are sometimes beneficial. 

The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.

Hope this helped :)
You might be interested in
In humans, MN blood types are determined by an autosomal gene with two alleles: LM and LN. In one population of 592 people, ther
RoseWind [281]

Answer:

148

Explanation:

According to Hardy-Weinberg equilibrium,

p + q = 1

p² + 2pq + q² = 1 where,

p = frequency of dominant allele

q = frequency of recessive allele

p² = frequency of homozygous dominant genotype

2pq = frequency of heterozygous genotype

q² = frequency of homozygous recessive genotype

Here,

Total population = 592

Number of NN people = 148

Frequency of N blood group or NN genotype (q²) = 148/592 = 0.25

q = √0.25 = 0.5

p = 1 - q

= 1 - 0.5 = 0.5

Hence, p = 0.5

Frequency of MM genotype = p² = 0.25

Number of people with MM genotype = 0.25*592 = 148

Hence, 148 people will have MM genotype or M blood group.

5 0
3 years ago
What are alleles mutations in the dna
Papessa [141]

Answer:

Mutations Are Recessive or Dominant

7 0
3 years ago
Why is there no external male reproductive organ in a frog?
Morgarella [4.7K]
Frogs reproduce by a special kind of embrace called "amplexus" which is an external fertilization that does not occur inside the female's body.

During mating (amplexus), the male frog grasps the female frog's trunk with his forelimbs.
The female frog discharges eggs into the water and then the male frog sheds the sperms over those eggs.


3 0
4 years ago
Which of the following is not a type of asexual reproduction?
insens350 [35]

Answer:

Fertilization

Explanation:

Binary fission is when single parent cell doubles it’s DNA, then divides into two cells. (usually in bacteria).

Budding is the small growth on surface of parent breaks off, resulting in formation of two individuals. (ex: yeast)

Fragmentation is when organisms break into two or more fragments that develop into a new individual. (occurs in many plants and some animals like starfish)

7 0
3 years ago
Think about a petal plucked from its flower. Is the petal alive according to the characteristics of life? Why or why not?
Ray Of Light [21]
No, that is because a living thing would need to reproduce, and also include living cells. When you remove the pedals, it will rot after a bit and then eventually die completely. 
3 0
3 years ago
Other questions:
  • Ten mL of gasoline has a mass of 7 grams. What is the density
    12·1 answer
  • Which order of events is correct?
    7·1 answer
  • What two amino acids are coded for by an mRNA segment reading CUA AGG?
    14·2 answers
  • Which statement describes one way in which global winds affect weather and climate
    14·1 answer
  • Considering that we are all made up of the same 4 nucleotides in our DNA, the same 4 nucleotides in our RNA, and the same 20 ami
    12·1 answer
  • Need an answer, please thanks
    14·1 answer
  • Compare the movement of oxygen and carbon dioxide across the cell membrane. (4 marks)
    9·1 answer
  • I have 10 minutes left
    15·2 answers
  • If the ability to roll one’s tongue is dominant (r) and the inability to roll one’s tongue is recessive (r), what are the possib
    6·2 answers
  • One primitive trait of Ardipithecus ramidus is its Group of answer choices opposable big toe flat face. pelvis. hip. PreviousNex
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!