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# Tutor profile: Anna C.

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Anna C.
Skilled Science and Mathematics Tutor
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## Questions

### Subject:Basic Math

TutorMe
Question:

Susan has purchased 12 apples, she uses 4 of these apples to bake a pie. Her sister than brings her 17 pears. Susan decides she will also make pear pie. She uses 6 pears in the pie. If Susan wants to make more pies How many can she bake until she does not have enough left?

Inactive
Anna C.

Susan needs four apples to bake a pie. She started with 12 apples but use four. To find out how many she has left we need to subtract. 12-4 = 8. Susan has 8 apples left because each pie needs four apples she can make two more apple pies. Susan started with 17 pears but has used 6 of them. How many does she have left? 17 - 6 = 11. If each pear pie needs 6 pears Susan can only bake one more pear pie because she would not have enough pears to make another.

### Subject:Biology

TutorMe
Question:

If the P1 generation consists of a true-breeding recessive individual and a true-breeding dominant individual what will the genotypic and phenotypic ratios of the F1 and F2 generations be?

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Anna C.

If the parent generations consist of a true-breeding recessive individual (hh) and a true-breeding dominant individual (HH) the F1 generation will all have the same genotype and phenotype. Each offspring will receive a dominant copy of the gene and a receive copy of the gene making the genotype 100% Hh and the phenotype 100% dominant. In the F2 generation, we cross two of the F1 generation offspring. After this cross, we end up with three different genotypes 25% homozygous dominant (HH), 50% heterozygous (Hh), and 25% homozygous recessive (hh). This makes the genotypic ratio 1:2:1 ad the phenotypic ratio 3:1

### Subject:Anatomy

TutorMe
Question:

The biological process of oogenesis differs from how meiosis is traditionally taught in a biology classroom. Please define oogenesis and explain how the true biological process deviates from the traditional teaching of meiosis.

Inactive
Anna C.

Generally, meiosis is accepted to be the division of a cell to create four daughter cells each with half the number of chromosomes of the parent cell. Typically it is assumed that each of these cells can become a viable sex cell meaning they are of equal size and viability. However, oogenesis, which is the biological process of egg production in a female fetus, does not produce four equal-sized and viable daughter cells. Instead, cells going through oogenesis undergo an uneven division in which one daughter cell receives the majority of parent cell's non-genetic material. As such the end result of oogenesis is one 'large' egg cell that is viable and three polar bodies.

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