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
MAVERICK [17]
3 years ago
8

What is a point mutation?

Biology
1 answer:
Veronika [31]3 years ago
3 0

Answer:

A) A single base pair change.

Explanation:

Point mutation is a change in a single base pair of a nucleotide. This comes as a results of mistakes made during DNA replication, induced by ultravoilet radiations, extreme heat and X-rays. There are three types of point or substitution mutations; change, deletion and insertion. The nucleotide bases are either mistakenly inserted, changed or deleted, thus changing the resulting protein or amino acid being coded for.

You might be interested in
Which equation best describes Velocity–Time graph?
Dahasolnce [82]
A line graph where the x axis is time and the y is velocity.

Be sure to include increments of measurements.
5 0
3 years ago
Do you think that all pollen germinates indiscriminately on all stigmas?
r-ruslan [8.4K]
Pollen tube growth is one of the most fascinating—and essential—phenomena in the life cycle of flowering plants. After a compatible interaction between pollen grains and the stigma surface, the pollen germinates and forms the pollen tube, which grows through the stigma, style, and transmitting tract to deliver the sperm cells to the ovule." 
2) Although pollens of many species germinate in simple aqueous media, stigmas do not provide satisfactory sites for the germination of most foreign pollen... Stigmas not only provide the proper conditions for the germination of pollen from their particular species, they actively inhibit the germination of pollen of many unrelated species.
4 0
3 years ago
Who does Ralph say will know they’re on the island
navik [9.2K]

Answer:

Can please add some detail to your question...

Explanation:

7 0
2 years ago
Which type of condition is acquired in a hospital or clinic setting?
SCORPION-xisa [38]
Nosocomial infection-acquired in hospital or health card facility
3 0
2 years ago
ATP is produced during the process of cellular respiration. Which is the order of the steps of cellular respiration? (A) Krebs c
Maurinko [17]

Answer: C- glycolysis, krebs cycle, electron transport chain.

Explanation: Glycolysis is a catabolic reaction that comprises of series of steps that breaks down food to give off energy in a form of ATP. Pyruvate is the product of glycolysis together with two ATP molecules. Pyruvate is further broken down by joining the krebs cycle and finally the electron transport chain that transfer electrons using the redox reaction, to reduce NADH to NAD + H and FADH to FAD, creating the final product i.e ATP, Overall one glucose molecule gives 38 ATP molecules in aerobic respiration.

5 0
2 years ago
Other questions:
  • The base of the pyramid is built from organisms that primarily
    7·2 answers
  • Is the grilled lizard unicellular or multicellular ?​
    8·1 answer
  • An organism that produces its food by photosynthesis _____.
    10·2 answers
  • What is the journey of carbohydrates in Digestion
    12·1 answer
  • Rachel is convinced that her occasional headaches are caused by a malignant brain tumor. although several physicians have assure
    8·1 answer
  • Which statement accurately describes reproduction in animals?
    13·1 answer
  • Which statements explain reasons why unconformities occur? Check all that apply.
    9·2 answers
  • The Global Youth Tobacco Survey asks youth to fill in the answers to several questions about their tobacco use. In this survey c
    6·1 answer
  • What type of mass movement takes place in areas covered with permafrost when the surface layer melts in the summer A: Creep B: E
    7·2 answers
  • Analyzing nitrogen fertileze use on united states
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!