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
Stella [2.4K]
3 years ago
14

Which best describe the structure of DNA?

Biology
1 answer:
Gennadij [26K]3 years ago
5 0

Answer:

DNA structure

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

Explanation:

You might be interested in
What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plas
Yakvenalex [24]

Answer:

The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations.

Explanation:

The Na/⁺K⁺ pump is an ATPase pump which is responsible for maintaining low Na⁺ and high K⁺ concentrations within the cytoplasm while maintaining high Na⁺ and low K⁺ concentrations in the extracellular fluid.

Since these two ions are moved against their concentration gradient, ATP hydrolysis is required to provide the energy for this process. This is done by moving in two K⁺ ions  inside while moving three Na⁺ ions outside the cell for every molecule of ATP hydrolysed to ADP and Pi.

If a competitive non-hydrolyzable analog of ATP is applied on the cytoplasmic side of a plasma membrane that contained a large concentration of the Na/⁺K⁺ pump, it will act by inhibiting the action of the Na/⁺K⁺ pump. This will result in an accumulation of Na⁺ ions inside the cell and lower than normal K⁺ ions concentration.

6 0
3 years ago
What is the human female reproductive system is adapted for? A. Production of zygotes in ovaries B. External fertilization of ga
victus00 [196]

Answer:

D. Transport of oxygen through a placenta to a fetus.

Explanation:

Zygotes are fertilized egg cell, zygotes aren't produced in the ovaries but ovums or egg cells are produced in the ovaries. So option A is false.

Fertilization is internal not external in human. Option B is wrong.

Production of milk happens in the mammary gland (the breast) not in the reproductive system. Option C is false.

Transport of oxygen through a placenta to a fetus. The placenta is a vascular organ which is implanted in the wall of the uterus (a part of the female reproductive system) and links to the foetus through the umbilical cord.

8 0
3 years ago
Which provides the best example of perseverance ?
Masteriza [31]
School is an example like you have a load of work and its hard and u keep going cuz u know it will get you someone good adn another is running a marothon even though its hard you just keep going. hope this helps and please rate below :)
4 0
3 years ago
Select the appropriate statement about healing wounds.
Diano4ka-milaya [45]
The most appropriate statement about healing wounds from the choices given is "cell growth increases both toward the beginning and the end of the healing process." The correct answer is A. 
8 0
3 years ago
Read 2 more answers
Which of the following statements is true?
Stels [109]

Answer:

The correct answer is option D.

Explanation:

The humans learn and inherit their culture from their lives and the experiences that are occurs to them. The principles and laws of society and morality are inherit or adapted by the life experiences and their environment.

A learning culture can be understand by the set of society values, and practices and process that encourage individual to increase competence and performance.

Thus, the correct answer is option D.

6 0
4 years ago
Other questions:
  • A biology student hiking in a forest happens upon an erect, 15-centimeter-tall plant that bears microphylls and a strobilus at i
    14·1 answer
  • Describe one of the many paths a carbon molecule can take through the carbon cycle.
    15·1 answer
  • The levels of water and salt in the blood are controlled by the
    8·2 answers
  • Hello, people of planet earth, I need help with a question for my friend Steve in science class, here on planet Neptune it is pr
    13·1 answer
  • How is the structure of cellulose and starch similar
    9·1 answer
  • Which two organelles are not found in an animal cell but are found in a plant cell?
    8·2 answers
  • 2. What is the complementary DNA sequence for the following DNA strands? Write the sequence of the complementary strand below th
    9·1 answer
  • Explain why we have different seasons.
    15·2 answers
  • HELP ME ASAP<br> PLEASE HELP
    10·1 answer
  • Photosynthesis is a process in which _______ energy is converted to _______ energy.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!