Question

http://gyazo.com/2350c4f09d1c4c274e519f9afb639fd4

(USE THE LINK TO ANSWER THESE QUESTIONS.)

A:What is the genotype of the offspring?

B:What is the phenotype of the offspring?

C:If two individuals with the same genotype as the offspring mated, what would the genotypes and phenotypes of their offspring be?

Answer 1

Okay. So I'm looking at the picture of your Punnett Square.

Let me explain genotype and phenotype, for you. It'll help you answer these questions.

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First off, the GENOTYPE is the pair of letters.

Let's take a look at that link you posted.
We see that there are two parents, on this Punnett Square.

One parent has the genotype L L.
The other parent has the genotype l l.

You see?
Each parent has one pair of letters.
Each pair of letters is a genotype.

L L is the genotype of one parent.
l l is the genotype of the other parent.

And you see those four blank squares that don't have any letters in them, yet?
Those four blank squares belong to the offspring.

We can to fill in those four blank squares, by crossing the genotypes of each parent.

Here, I'll show you:



Do you see how each of those four squares has the same genotype?
That's because each offspring gets one letter (allele), from each parent.

So, each of the four offspring have the genotype L l.

What that means is that all of the offspring will have a long fur coat,
since the capitalized letter (allele) always matters more than the lower-case letter.

Do you understand genotype now?

GENOTYPE is the group of letters that an organism has, for a trait.

In this case, the trait is the length of the fur.

And both the parents, and their offspring, each have a group of two letters, for this trait.
They each have their own genotype.

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Now, let's talk about PHENOTYPE.

I'll start off with an example:

If the dog (from your chart) has the genotype L L,
then, obviously, L L is its GENOTYPE.

You see?

But what does it mean, if the dog has the genotype L L?

It means that the dog will have a long fur coat.
(Take a look at your chart. You can see that a capital L means that the dog has a long fur coat.)

The long fur coat is its PHENOTYPE.

The PHENOTYPE is the actual physical trait.

So, again,
if a dog has the GENOTYPE L L,
then its PHENOTYPE is a long fur coat.

On the other hand,
if a dog has the GENOTYPE l l,
then its PHENOTYPE is a short fur coat.

Question B is asking us about the PHENOTYPE of the offspring.

All four of the offspring have the GENOTYPE L l.

You see?

So,
if each offspring has the GENOTYPE L l,
then what is its PHENOTYPE?
(Remember, the capitalized letters matters more than the lower-case letters.)

I'll leave question B for you to answer.

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Now, question C is asking us...

If two dogs with the same phenotype as the offspring mated,
what would be each of THEIR offspring's genotype and phenotype?

Each of the offspring, from your chart, has the GENOTYPE L l.

Now, if two dogs with the genotypes (L l) mated,
what would be the GENOTYPES and PHENOTYPES of each of their own offspring?

I'll leave this question for you too.

All we have to do is make another Punnett Square.
And this time, the parents would be (L l) and (L l).

Answer 2

After what 'InYourHead' just explained .... I don't think there can be a better explanation.