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Alex Ar [27]
2 years ago
10

Describe the two stages of aerobic cellular respiration. Be sure to explain where in the cell each stage occurs.

Biology
2 answers:
Katena32 [7]2 years ago
5 0

The first stage of cellular respiration occurs in the cytoplasm. This is where glucose is broken down into smaller molecules. A small amount of energy is also released. The second stage occurs in the mitochondria. This is where the small molecules combine with oxygen to produce water, carbon dioxide, and a large amount of energy.

sleet_krkn [62]2 years ago
3 0
<span>Cellular respiration is one of the most elegant, majestic, and fascinating metabolic pathways on earth. At the same time, it’s also one of the most complicated</span>
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What is a factor that effects soil development?
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Answer:

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Why are all the people on earth members of t he same biological species? A. All people have the same genetic makeup. B. All peop
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6 0
3 years ago
Read 2 more answers
(Here's the table used for context)
Bingel [31]

In complete dominance, heter0zyg0us individuals carry both alleles -dominant and recessive- but only express the dominant phentoype. Cross 1: Nn x nn. Cross 2: NN x nn

<h3>What is complete dominance?</h3>

When the dominant allele completely masks the recessive allele, we talk about complete dominance.

This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait. The dominant allele is hiding the expression of the recessive allele.

<h3>What is a punnett square?</h3>

The Punnett square is a representation that shows the different types of <u>gamete combinations </u>according to the alleles involved in a cross.

Punnett square shows the <u>probabilities</u> of getting offspring with different <u>genotypes</u> and their consequent<u> </u><u>phenotypes.</u>

So, according to the provided data,

  • <u>Cross 1</u>: gray fur x black fur

F1) 3 gray fur: 2 black fur

  • Cross 2: gray fur x black fur

F1) 0 gray fur: 5 black fur

By looking at the phenotype of progeny produced by family 2, and assuming complete dominance, we can infere that black is the dominant phenotype. Why is that? because when you crossed a gray animal with a black animal and the whole progeny is black.

So, assuming a diallelic gene coding for the fur color, we will name

  • N to the dominant allele that codes for black
  • n to the recessive allele that codes for gray.

Possible genotypes and phenotypes

  • NN ⇒ Black fur  ⇒ dominant phentoype
  • Nn ⇒ Black fur ⇒ dominant phentoype
  • nn ⇒ Grey fur ⇒ recessive phentoype

Here what you need to analyze is which phentoypes appear among the progeny and their frequencies to get to interprete the parents' genotype.

  • If both parents are h0m0zyg0us dominant (NN x NN), the whole progeny expresses the dominant trait (100% NN)

  • If one parent is h0m0zyg0us dominant and the other one heter0zyg0us (NN x Nn), the whole progeny expresses the dominant trait (50%NN and 50%Nn).

  • If one parent is h0m0zyg0us dominant and the other one h0m0zyg0us recessive (NN x nn), the whole progeny expresses the dominant trait (100% Nn).

  • If both parents are heter0zyg0us (Nn x Nn), the offspring will express both phenotypes in a ratio 3:1 (25% NN + 50% Nn and 25% nn).

  • If one parent is h0m0zyg0us recessive and the other one heter0zyg0us (nn x Nn),  the offspring will express both phenotypes in a ratio 1:1 (50% Nn and 50% nn).

  • If both parents are h0m0zyg0us recessive (nn x nn), the whole progeny will express the recessive trait (100% nn).

Now let us analyze the crosses,

  • <u>Cross 1</u>: gray fur x black fur

F1) 3 gray fur: 2 black fur

You crossed a black animal with a gray animal and the offspring expresses both phenotypes. So the black animal (dominant phenotype) must be heter0zyg0us for coat color.

Parents' phenotype)  gray   and    black

Parentals)                      nn     x     Nn

Alleles in Gametes)   n      n       N      n        

Punnett square)           N          n

                            n       Nn       nn

                            n       Nn       nn

F1) Genotype

1/2 = 50% of the progeny is expected to be heter0zyg0us, Nn

1/2 = 50% of the progeny is expected to be h0m0zyg0us recessive nn

      Phenotype

1/2 = 50% of the progeny is expected to be black -Nn-

1/2 = 50% of the progeny is expected to be gray -nn-

  • Cross 2: gray fur x black fur

F1) 0 gray fur: 5 black fur

You crossed a black animal with a gray animal and the offspring expresses only the dominant phenotypes. So the black animal must be h0m0zyg0us dominant for coat color.

Parents' phenotype)  gray   and    black

Parentals)                      nn     x     NN

Alleles in Gametes)   n      n       N      N        

Punnett square)           N         N

                            n       Nn        Nn

                            n       Nn        Nn

F1) Genotype

100% of the progeny is expected to be heter0zyg0us, Nn

      Phenotype

100% of the progeny is expected to be black -Nn-

Remember that the Punnett square does not give you information about the number of individuals that can be produced. It just provide information about probabilities of getting individuals with certain genotype of phenotype and their frequencies.

You can learn more about complete dominance and punnett square at

brainly.com/question/1953851

brainly.com/question/25357981

#SPJ1  

5 0
2 years ago
The survival of some plants depends on their ability to have seeds transported to a favorable environment. What are the differen
Pie

Answer:

The transport of seed from one environment to other environment is known as pollination. There are different factors which does this job.  

Explanation:

The transportation of pollen grains from one place to another is done other by natural process or by human process.

In natural process the transportation is done either by wind or by the water. It may be carried by some birds, insects or animals accidentally or intentionally.

When the pollen grains are transferred by humans’ effort or by other mechanical efforts it is known as artificial process.

The pollen grains transferred from anther to the stigma of other plant in a favorable environment to have its further process.  

5 0
2 years ago
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