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Veronika [31]
3 years ago
9

Jane is observing a cell under an electron microscope. She identifies an organelle having an outer and an inner membrane. She al

so notices that the outer membrane is smooth while the inner one is highly folded. Which organelle is Jane observing?
a.Mitochondria
b.Golgi bodies
c.Nucleus
Biology
1 answer:
Damm [24]3 years ago
7 0
A) Mitochondria - because they are double membraned and the inner one is highly folded into 'cristae' 
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Brown hair is dominant over red hair. What will the genotypes and phenotypes of the offspring of a cross between a homozygous br
bija089 [108]

Answer:

1) Firstly, lets sort out the alleles for the dominant and recessive characteristics. The dominant brown allele will be written as B and the recessive red hair allele will be written as b.

2) Lets sort out the genotype of the parents. The parent having homozygous brown coloured hair will carry the alleles BB. The parent carrying the heterozygous brown coloured hair will carry the alleles Bb.

3) The punnet square from these parents will be drawn as follows:

      B        b

B    BB     Bb

B    BB     Bb

4) Now, lets predict the phenotype of the offsprings. The results from the punnet square show that all of the offsprings will have brown coloured hair.

5) The genotype for the children will have 50% chance to be homozygous brown (BB) and 50% chance to be heterozygous brown (Bb).

5 0
3 years ago
The answer pls go quick and just 1,2,3,4
Brilliant_brown [7]

Answer:

1. Metaphase

2. Anaphase

3. Telophase

4. Cytokinesis

8 0
3 years ago
5. The permease (transporter) allows glucose and Na into the cell requires ATP. True or False?
dem82 [27]

Answer: 5. False 6. False

Explanation: The permeases are membrane transport proteins, they're secondary active transporter that allow the movement of a specific molecule in or out of the cell in the direction of a concentration gradient, it is a form of facilitated diffusion and does not require energy. The permease secondary transporter uses the Na ion concentration to move glucose into the cell.

When the ion concentration gradient is set, the concentration of glucose in the cell is higher than the concentration of blood. Glucose will move to the blood by passive diffusion through permease secondary transporter.

The transport mechanism is carrier mediated it does not require energy.

7 0
3 years ago
Why would rapid change in climate potentially lead to ecological problems?
nadya68 [22]

The rapid change in the climate would potentially lead to ecological problems because evolution is unlikely to occur quickly enough to keep pace with biome changes.

<h3>What do you mean by Evolution?</h3>

Evolution may be defined as the process of growth and development or the theory that organisms have evolved and developed from past organisms.

Biome changes occur due to the fact of evolution. Both evolution and biome changes synergistically move forward to support organisms' life in a much better way.

Therefore, the rapid change in the climate would potentially lead to ecological problems because evolution is unlikely to occur quickly enough to keep pace with biome changes.

To learn more about Evolution, refer to the link:

brainly.com/question/1144962

#SPJ1

8 0
2 years ago
Which formation is the result of wind erosion?
bogdanovich [222]
C.
The force the wind exerts on the surface of the rock while it blows past it can cause it to erode into irregular shapes.
4 0
3 years ago
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