All categories

2 years ago

What Is cellular respiration

Biology

1 answer:

4vir4ik [10]2 years ago

7 0

Answer:

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

Explanation:

You might be interested in

Short-winged fruit flies studied in the lab cannot fly because they have an allele that causes them to grow tiny wings (w). Norm

lana [24]

Answer: The probability of getting a short winged fruit fly in the F1 generation is 2/4 or 1/2.

Explanation:

By using a monohybrid punnett square you should be able to come to the same answer.

5 0

2 years ago

When pink sweet peas were self-pollinated and the seeds were collected and sown, the following flower colors were obtained: Red

Pavlova-9 [17]

Answer:

c. 1:2:1

The results are consistent with incomplete dominance for this trait, with pink flowers being heterozygous.

Explanation:

If flower color were determined by a gene showing incomplete dominance, the possible genotypes and phenotypes are as follows:

RR- red
ww - white
Rw - pink

If pink sweet peas are self-pollinated, then a cross between two heterozygous individuals is done (Rw x Rw).

From this cross the expected ratios are:

1/4 RR (red)
2/4 Rw (pink)
1/4 ww (white)

So the null hypothesis is that the observed results exhibit a 1:2:1 ratio.

<h3>Chi square test</h3>

$X^{2} = \sum \frac{(Observed - Expected)^2}{Expected}$

The observed frequencies were:

34 Red
76 Pink
40 White

Total 150

The expected frequencies for our null hypothesis are:

1/4 x 150 = 37.5 Red
2/4 x 150 = 75 Pink
1/4 x 150 = 37.5 white

$X^{2} = \frac{(34- 37.5)^2}{37.5} + \frac{(76- 75)^2}{75} + \frac{(40- 37.5)^2}{37.5}$

$X^2=0.5067$

The degrees of freedom (DF) are calculated as number of phenotypes - 1; in this case DF = 3-1 = 2.

If we look at the Chi square table, for 2 DF and a probability of p0.05, the critical value is 5.991

Our X^2 value of 0.5067 is less than the critical value, so we do not reject the null hypothesis. The results are consistent with incomplete dominance for this trait, with pink flowers being heterozygous.

8 0

3 years ago

9) Many gardeners use a chemical weed-killer to control plant pests in their gardens. However, many weeds have begun to develop

ira [324]

Could be adaption????

3 0

2 years ago

Read 2 more answers

The plates include the lithosphere under the oceans true or false

natima [27]

Answer:

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. So i think its True

3 0

2 years ago

Explain the advantage in having an inducible enzyme system that is regulated

My name is Ann [436]

It has the advantage that only when the substrate is presence the genes responsible for its metabolism are turned on.

7 0

3 years ago