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Dafna11 [192]
3 years ago
15

Can yeast replace itself with new cells

Biology
1 answer:
ollegr [7]3 years ago
6 0

Answer: Yes

Explanation:Most yeasts reproduce asexually by budding: a small bump protrudes. A few yeasts reproduce by fission, the parent cell dividing into two equal cells.

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When do we most often see cnidarians and why?​
klemol [59]

Answer:

what cnidarians you need to spell right

4 0
3 years ago
Propane is burned to provide the heat in many cooking grills. The chemical
tangare [24]

Answer: it's 3CO2+4H2O+Energy

Propane is a linear alkane of formula C3H8. It is mainly used as fuel (this is the main component of liquefied petroleum gas) in cooking and chemical industry reactions.

The reaction of its complete combustion by the presence of oxygen is:

C3H8 (gas) + 5O2  ==> 3 CO2 + 4H2O + energy (2220⋅kJ)

As we can see, propane can release carbon dioxide and water as every combustion reaction, and a lot of energy in the form of heat.

6 0
1 year 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).

<u>From this cross the expected ratios are:</u>

  • 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><u>Chi square test</u></h3>

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

<u>The observed frequencies were:</u>

  • 34 Red
  • 76 Pink
  • 40 White

Total 150

<u>The expected frequencies for our null hypothesis are:</u>

  • 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
Which statements describe a situation with a displacement of zero
MA_775_DIABLO [31]

An object that starts and ends at the same point would have zero displacements.

<h3>What is displacement?</h3>

Displacement is the property of a body or an object to be moved from one place to another.

Thus a body that moves or is moved from point A to point B has been displaced.

A body with zero displacements either did not move at all or finished at the same point it started.

For example, a body that moves from point A to B, and then back to A will have zero displacements.

More on displacement can be found here: brainly.com/question/11934397

#SPJ1

5 0
1 year ago
A chromosome number may be reduced from diploid to haploid through the process of
victus00 [196]

Meiosis - the cells divide to produce 4 haploid cells

5 0
2 years ago
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