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
PilotLPTM [1.2K]
2 years ago
12

Nucleic acids are composed of:

Biology
2 answers:
Tema [17]2 years ago
7 0

Answer:

D

{ignore this}

natita [175]2 years ago
6 0
Each nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. 
You might be interested in
Es and Moion Assessment (Luncn)
anzhelika [568]
B the warmth from your hands us being transferred
7 0
2 years ago
Read 2 more answers
During meiosis homologous chromosomes often twist around each other break exchange segments and rejoin this process usually cont
Annette [7]

Explanation:

Crossing over, or genetic recombination contributes to genetic variation and diversity.

In early Prophase I of meiosis, crossing over occurs. This is the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined. The chromosome pairs form tetrads held together at chiasmata.

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells. This process is known as mitosis, and occurs in cell division and growth processes. Two new nuclei are formed, along with identical cells. These are the same as the parent cell and the chromosome number (2n) is maintained. Conversely in meiosis, the number of chromosomes (2n) is halved through meiotic divisions, producing 4 (n) germ cells (sperm or eggs), each containing half the number of chromosomes as its parent cell.

During the process of prophase I one the nuclear envelope containing chromosomes has only partly broken down homologous chromosomes are joined together by proteins and a complex or pairing call synapsis- corresponding genes on chromatids are aligned precisely. The syanpsis allows for crossing over which is the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined.

Crossing over contributes to genetic variation and diversity; novel gene combinations in gametes are formed, which are not present in parent chromosomes. Genetic diversity describes all the genetic characteristics or traits within a species.

Learn more about mitosis at brainly.com/question/4303192

#LearnWithBrainly

6 0
3 years ago
Which blood type can be transfused into a patient who has blood type A–?
larisa86 [58]
<span>The O Blood Which Is Also Called A Universal Donor

</span>
7 0
3 years ago
Read 2 more answers
20 points and brainless!
Goshia [24]

Answer:

36 base

Explanation:

3 0
2 years ago
Read 2 more answers
Describe the trend you see in the data for atmospheric pollutants prior to 1970.
Lelu [443]
The pollutants in 1970 were the highest since recorded history and are declining steadily.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Is DNA found in all living or once living cells
    11·1 answer
  • Through the semester, you have used two bacteria that produce colorful colonies: one produce yellow colonies, another one pink.
    7·1 answer
  • Organisms need nutrients in order to:
    14·1 answer
  • The difficulty of reading under dim light conditions can be explained by ______.
    14·1 answer
  • 6. Converging plates can form mountains, volcanic eruptions, earthquakes, tsunamis, and islands.
    6·1 answer
  • Gizmo<br> Student Exploration: Forest Ecosystem
    15·1 answer
  • What is the cell membrane made of?
    15·1 answer
  • When sodium ions enter a neuron through chemically gated channels, they always cause depolarization, and thus firing of the cell
    13·1 answer
  • 41.If Danielle discover a new microbe that can grow in the presence of oxygen and do not use it, then this
    13·1 answer
  • Some molecules can be oxidized in the cells of animals. This oxidation releases energy for the animal to use. From what source d
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!