How do you predict a child's future height?

2 answers:

8 0

A child's future height can be seen in their feet!

Have you ever seen a short (adult) person with big feet? NOPE.

Because your body grows in ratio size to fit height. Usually the feet grow out first, and then after You start growing in height.

And yes of course, you can look at the parents height as well. Because Genetics also contributes to the child's height and weight!

Good Luck! :)

adoni [48]2 years ago

6 0

The future is unclear but a wild guess you would look at the height of his or her parents and then there parents and that might tell you the child's future height hope that this helps if not message me

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How has stratospheric ozone loss disrupted food webs in the antarctic?

prohojiy [21]

Heat from the sun makes it through near the Antarctic (where the hole is) is melting the ice and not allowing some key species to feed. seals don't have ice to come up for air through like normal so polar bears starve. loss of land means less food for a lot of species because the hunting grounds is closing and there is no room to expand.

8 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).

<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

2 years ago

Hellllllllllppppp pleasse!!!!!!!

LekaFEV [45]

Answer:

Im not sure but I think its a

Explanation:

I learned it in class

4 0

2 years ago

Read 2 more answers

how many gender are really there? I believe that there are two male and female but people say that there are like 50