Question

pls i need help

Answer 1

What do you need help with?

Answer 2

are u in trouble?

Answer 3

no am not in trouble, i just need help with my assignment

Answer 4

The first one is already answered right? just making sure

Answer 5

its not

Answer 6

Oh, okay

Answer 7

Do you know how to use Punnet Square/s?

Answer 8

yes i do

Answer 9

okay and do you know how to find the recessive Allele and the dominant Allele?

Answer 10

no like am really sorry but that is what am just doing right now can i get back to you when am done because am having class now

Answer 11

sure c:

Answer 12

and i know how to find it

Answer 13

that's good

Answer 14

Hi can i do it now

Answer 15

i know but how do i start

Answer 16

the document at the top

Answer 17

@smokeybrown pls can you help out

Answer 18

I'm not sure which
For question 1.a. you simply need to match the proper allele E or e to the proper label, dominant or recessive. As a general rule, the dominant allele will be represented by an uppercase letter and the recessive will be represented by a lowercase letter.

For 1.b. you can start by finding the child on the tree. So, for instance, for II-3 you would go to the second generation and find the third child. Then, you can draw a Punnett Square for the parents of that child in order to see what allele combinations are possible. You may have to draw more than one Punnett Square, if the parents' genotypes are uncertain. Using the information from the Squares you draw and the phenotypes (expressed traits) of the child, you should be able to list the possible genotypes of the child

Part 1.c, requires you to make some reasoning based on what you know about gene expression. The father I-1 has an attached earlobe, while the mother I-2 does not. The question asks you to give reason(s) why none of I-1 and I-2's children have attached earlobes.

Part 1.d. is similarly based on reasoning. We know that I-1 has an attached earlobe, which is a recessive trait. Thus, we can say for certain that I-1 has a genotype of 'ee'. For the child, II-1, we see that the child does not have attached earlobes; based *only* on this observation, it is possible that their genotype is EE or Ee. However, we know that her father had ee alleles. So, is it possible that II-1 is EE? Why or why not?

Part 1.e. relies on the rules described at the top of the page, specifically the rules for how children are arranged in the chart based on order of birth. Hint: children who are born first (to the same parents) appear to the left of children who are born later.

For part 2, you are only required to predict all the possible genotypes of the given people, based on their expressed traits. So, if someone does express the recessive trait (shaded in black), you know they must have all recessive alleles. And if someone does not express the recessive trait (shown in white), then their genotype could either be EE or Ee, so you would list both possibilities.

Answer 19

A small addition to question 2:
For parents (d) and (e), note that neither of them can possibly have EE, since they produce a child (g) who has ee. So, in that case, you know that (d) and (e) both have Ee, even though neither of them express the recessive trait, based on the expression of their child.

Answer 20

ok thanks i will try them out

Answer 21

but i will do it later cause am in class now

Answer 22

Ok sounds good. If you get any results later, I'll be happy to take a look at them

Answer 23

for 1c answer i wrote that it is because the allele of the mother dominates the father allele and the recessive trait is there it just doesn't show

Answer 24

for id i wrote that it is not possible because one of the parent has reccessive trait

Answer 25

for Ie, it is false because siblings are older from the left to right which means III5 is older than III3

Answer 26

ok thank you so much for the help

Answer 27

Not a problem! I'm glad to help