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3 years ago

What is an allele in bio?

Biology

2 answers:

Lostsunrise [7]3 years ago

6 0

An allele is like a trait or a specific gene.

Margaret [11]3 years ago

4 0

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.

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QUESTION 27

andrey2020 [161]

Hello there!

Your question: Oogenesis ultimately produces ______ cell(s).

Your answer: Oogenesis ultimately produces one cell.

Happy Studying!

7 0

4 years ago

Vaccination against the hepatitis a virus is unnecessary if you:

padilas [110]

If you have hepatitis A infection you have inflammation in your liver that's caused by a virus. Other symptoms of this virus are jaundice (yellow eyes and skin, dark urine), pain in your belly, loss of appetite, nausea, fever, diarrhea and fatigue. A vaccination against this virus is unnecessary if you have been infected in the past.

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3 years ago

Approved eye protection is to be worn:

xeze [42]

The answer is D, all the time

6 0

3 years ago

Read 2 more answers

22. A plant geneticist is investigating the inheritance of genes for bitter taste (Su) and explosive rind (e) in watermelon (Cit

mylen [45]

Answer:

See the answer below

Explanation:

Using the formula for calculating Chi square ( $X^2$ ):

$X^2$ = $\frac{(O - E)^2}{E}$ where O = observed frequency and E = expected frequency.

The observed frequencies for the four phenotypes are 88, 62, 62, and 81 respectively.

For the expected frequency, the phenotypes are supposed to assort in 9:3:3:1 according to Mendel ratio.

Hence, expected frequencies are calculated as:

phenotype (1) = 9/16 x 293 = 164.81

phenotype (2) = 3/16 x 293 = 54.94

phenotype (3) = 3/16 x 293 = 54.94

phenotype (4) = 1/16 x 293 = 18.31

The $X^2$ is calculated thus:

Phenotype O E $X^2$

1 88 164.81 $\frac{(88 - 164.81)^2}{164.81}$ = 35.80

2 62 54.94 $\frac{(62 - 54.94)^2}{54.94}$ = 0.91

3 62 54.94 $\frac{(62 - 54.94)^2}{54.94}$ = 0.91

4 81 18.31 $\frac{(81 - 18.31)^2}{18.31}$ = 214.64

Total $X^2$ = 35.80 + 0.91 + 0.91 + 214.64 = 252.26

To the nearest tenth = 252

Degree of freedom = n - 1 = 4- 1 = 3

$X^2$ tabulated = 7.815

The calculated  $X^2$  exceeds the critical value, hence, the null hypothesis is rejected. The two genes did not assort independently. 

4 0

3 years ago

What type of mountain is most likely to form when plates with edges that have oceanic lithosphere collide?

bija089 [108]

A fault block mountain would form.

The two types of plates colliding would make them both rise up creating amountain that looks sort of looks like cards standing together.

6 0

4 years ago