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
In-s [12.5K]
2 years ago
11

Select ALL the correct answers.

Biology
1 answer:
irga5000 [103]2 years ago
5 0

Answer:

Mutations to somatic cells are only present in the type of cell in which the mutation occurred.

You might be interested in
How are energy inputs and outputs related to chemical reactions
GREYUIT [131]

The large number of areas covered by the chemical energetics can be explained by the different forms in which chemical energy can be released: heat and combustion work, electrical energy in electrochemistry, radiant energy in chemiluminescent systems.

The chemical energy provided by a reaction reflects the energy balance associated with the electronic modifications suffered by the species involved.

From an energy point of view, a chemical reaction between molecules can be schematized in two stages. The first requires a supply of energy and corresponds to the rupture of the bonds of the reactant molecules with release of the atoms which constitute them.

The second releases energy and concerns the creation, by recombination of these atoms, of new bonds entering the structure of the reaction molecules.

As a general rule, the energy released in the second stage is greater than the first. We are talking about exothermic reaction. The difference between these two energies (reaction enthalpy) measures the amount of chemical energy transferred to the external environment.

It is conceivable that this quantity translates, not only the number, but also the strength of the connections involved.

6 0
3 years ago
Record the stages of meiosis in eukaryotic cells realizing that there are two cell divisions involved, each having their particu
Leya [2.2K]
1.1
Meiosis I
The first meiotic division: diploid → haploid
    Prophase I: Chromosomes condense, nuclear membrane dissolves, homologous chromosomes join and occurs crossing over.
    Metaphase-I: the homologous chromosomes align in the middle of the cell. Spindle fibers from the centrosomes connect to the chromosomes.
    Anaphase -I: Spindle fibers contract and split the homologous chromosomes, moving them to opposite poles of the cell.
    Telophase -I: Chromosomes decondense; cell divides to form two haploid cells.

1.2 Meiosis II
The second division: separates sister chromatids (these chromatids may not be identical due to crossing over in prophase I)

     Prophase II: Chromosomes condense, nuclear membrane dissolves, centrosomes move to opposite poles (perpendicular to before)
    Metaphase-II:  the chromosomes align in the middle of the cell. Spindle fibers from the centrosomes connect to the chromosomes (at the centromere)
    Anaphase-II: Spindle fibers contract and split the sister chromatids, and moves them to opposite poles of the cell.
    Telophase-II: Chromosomes decondense,cells divides again to form another 2 haploid daughter cells. Final: 4 new cells.


2. The differences:
Mitosis:
- has 1 division per cycle
- one cell produces 2 new cells
- the genetic information in the mother-cell and the daughter-cells are the same. ( the number of chromosomes is also the same)
- it occurs in somatic cells
Meiosis:
- two divisions per cycle
- one cell when divides produces 4 new cells
- the new cells have different genetic information. mixes the genetic material from the parent cells
- the number of chromosomes of the daughter cells is half of the mother's.

3. Prokaryotic organisms don't divide through mitosis, they use a different process called binary fission. Only eukaryotic organisms, or those whose cells have a defined nuclei, undergo mitosis. Bacteria, for example, are prokaryotic organisms that use binary fission.

4.
 It can't occur. Cross over is the exchange of DNA between homologous chromosomes.  That will result in recombinant chromosomes during sexual reproduction. It can't occur on different chromosomes because they don't code for the same genes.

5. There are a lot of different theories about that, but it's mostly believed that meiosis must evolve before sexual reproduction. That's because The cell replicates their information first and then divides. Plus the cell does that even though it didn't recombine DNA with another organism (sexual reproduction).

3 0
3 years ago
What are the next two terms in the sequence? O, T, T,<br> F, F, S, S,E
Varvara68 [4.7K]
Janashshshajsshsjusshshshdhshshdh
6 0
3 years ago
How much is a quarter
Anni [7]

50$ or 60$ depending on who you get it from

6 0
3 years ago
Read 2 more answers
According to the PHS, a "significant financial interest" includes royalty income paid to an investigator and its disclosure is r
Snezhnost [94]

According to the PHS, the term "significant financial interest" includes royalty income paid to an investigator except if that income is from the investigator's current employing institution.

5 0
3 years ago
Other questions:
  • When faced with dangers close to both sides of your path of travel you should create:?
    6·1 answer
  • The rock cycle is not important to living organisms. Please select the best answer from the choices provided T F
    15·1 answer
  • Which of the following is not a reason why observed genetic distances between species do not reflect the actual distances?
    5·1 answer
  • C2H12O6 is a type of
    15·1 answer
  • PLZ HEKLP ASAP WILL MARK BRAINLEIST TO WHO EVER ANSWERS CORRECTLY FIRST 30 PTS
    8·1 answer
  • Some current research efforts are investigating whether or not ________, a group of prokaryotes with the ability to produce oxyg
    9·1 answer
  • ______ is a push or pull that one object exerts on another.
    11·2 answers
  • Guppies living in a stream have a variety of spot patterns, some of which provide good camouflage against the stones in the stre
    6·2 answers
  • Why are invasive species problem for the ecosystem
    14·1 answer
  • 1.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!