00:01
Okay, so looking at this question, let's start with number one.
00:06
The difference between a character and a trait is a trait is a version of a character.
00:25
So if a character is eye color, a trait is blue eyes.
00:37
Let's look at number two.
00:39
Number two, you're looking at two alleleys.
00:43
Big b is black, little b is white, it's recessive.
00:47
If we're looking at big b, little b, they're going to be black, right? and if we have little b, little b, they're going to be white.
00:58
And if you have big b, big b, you have two big black alleles there, and we're going to assume they're puppies, and those puppies are going to be black.
01:07
Okay.
01:11
So then moving on to number three, we're talking about bar bodies.
01:15
Well a bar body is a extra unused x chromosome and in x x x x, x, x, x, you have one bar body.
01:52
Number four, where are we, epistasis, and i've heard this pronounced multiple ways.
02:09
Epistasis is basically when one allele, another allele, in a different location.
02:37
You could also say gene here if you want instead of allele.
02:42
I've heard it both ways.
02:44
Number five, we're looking at a cross between heterozygous.
02:50
I'm going to put a little line through by big z there, so it's easy to tell the difference.
02:54
I'm going to put one genotype over here, the other one over here.
03:03
Just going to fill in my pennant square here.
03:06
All right.
03:13
So our results, you're going to have 25%, one out of four.
03:16
They're going to have big z, big z, homozygous dominant.
03:20
You're going to have a 50 % chance of heterozygous, big z, little z, and a 25 % chance of little z, little z homozygous recessive.
03:32
Let's look at question six here.
03:35
If blue eyes are dominant to brown, a person with blue eyes, so they're going to have little b, little b...