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
3241004551 [841]
3 years ago
15

The brain and spinal cord are part of what system?

Biology
2 answers:
valentinak56 [21]3 years ago
5 0
The answer would be the second choice, "Central Nervous System"
stealth61 [152]3 years ago
4 0
The correct answer will be the second choice
You might be interested in
Two independently segregating genes determine kernel color in wheat. Red color results from at least one dominant allele in both
Lera25 [3.4K]

Answer:

a) The expected phenotype of the F1 plants is 100% RrBb, red kernels.

b) The expected phenotypic classes in the F2 are: 9:3:3:1

   9/16 R-B-, 3/16 rrB-, 3/16 R-bb,  1/16 rrbb

   Proportions 9:6:1.

9/16 Red kernel (R-B-), 6/16 Brown kernel (rrB- + R-bb), 1/16 White kernel (rrbb)    

Explanation:

<u>Available data:</u>

  • red kernel: R-B-
  • brown kernel: R-bb or rrB-
  • white kernel: rrbb

1º Cross)  RRBB      x      rrbb

F1)             100% RrBb (red kernels)

2ºCross)   RrBb       x       RrBb

Gametes)  RB                   RB

                  Rb                   Rb

                  rB                    rB

                  rb                    rb

Punnet Square)      RB           Rb         rB         rb

                 RB      RRBB      RRBb     RrBB     RrBb

                 Rb      RRBb      RRbb     RrBB     Rrbb

                 rB       RrBB       RrBb      rrBB      rrBb

                 rb       RrBb       Rrbb       rrBb     rrbb

F2)  Phenotypic classes:

       <em>9/16 R-B-</em>

<em>        3/16 rrB-</em>

<em>        3/16 R-bb</em>

<em>        1/16 rrbb</em>

      Phenotypic proportions:

      <em>9/16 Red kernel (R-B-)</em>

<em>       6/16 Brown kernel (rrB- + R-bb)</em>

<em>       1/16 White kernel (rrbb)         </em>                      

7 0
3 years ago
Environmentalists in Florida are against offshore drilling in the Gulf of Mexico MAINLY because the drilling might
inn [45]
The answer is <span>A) polluted beaches. it will ruin the beaches </span>
5 0
3 years ago
Read 2 more answers
Transcriptionally inactive regions of the genome are typically heavily methylated. True or false?
polet [3.4K]

The answer is true.

DNA methylation is a process by which methyl groups are added to the DNA, more precisely to its nucleotides adenine or cytosine (they are methylated) via enzymes called DNA methyltransferases. This process as a result can change the activity of a DNA. For example, if DNA of gene promoter is methylated gene transcription is repressed. The opposite process is DNA demethylation.

So, DNA methylation is an epigenetic mechanism meaning that gene activity can be changed and inherited that way, but the sequence  of DNA remains the same.

6 0
3 years ago
Rock layers can be correlated to eachother using fossils.   Please select the best answer from the choices provided T F
butalik [34]

Um its true.........What can I say expect your welcome.......

4 0
3 years ago
Read 2 more answers
Olygenetic inheritance
Alik [6]

The correct question is :  The given statement is True or False

While studying a sample for height differences, researchers observed that the height of the participants varied significantly regardless of whether the participants' parents were short or tall. This suggests that the physical characteristic of height is most likely an example of Polygenetic inheritance.

Answer: True

Explanation:

The poly genetic inheritance can be defined as the characters which is not only controlled by the single gene in the body it is controlled by the multiple genes of the body.

The genes are large in quantity but the effect is very small. There are many characters in the body which is polygenic in nature.

These are height of offspring, skin color of the offspring, eye color of the offspring, et cetera.

6 0
3 years ago
Other questions:
  • Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. C) osmosis.
    15·2 answers
  • What would be the benefit of being a producer in terms of energy?
    15·2 answers
  • the light reactions of photosynthesis supply the calvin cycle with; a) light energy.; b) co��� and atp.; c) h���o and nadph.; d)
    15·1 answer
  • Which method gives the actual age of a fossil in years?
    8·2 answers
  • Type of biomolecule is used to convert energy to ATP
    14·1 answer
  • Explain why a city that receives 10 hours more light each day has colder average temperatures.
    5·1 answer
  • la reproducción se realiza a través de células especializadas conocidas como______los cuales aportan la mitad de informacion____
    5·1 answer
  • What is the highlighted number ?
    12·1 answer
  • List and explain the different hazards caused by earthquakes (falling objects, collapsing infrastructure, tsunamis).
    10·2 answers
  • Describe the adaptations of the mammalian kidney to selective reabsorption<br><br>​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!