Katie Said:

I need help with this genetics question?

We Answered:

i'm not sure if it's the "dash" technique, but sometimes, when u're writing genotypes and the knowledge of only one allele is req'd... u can just write A/- ... meaning A/A or A/a.

hope that's useful.

Grace Said:

Biology help: are these problems even solvable!?!?

We Answered:

Yes, these have information missing; generally, which allele is dominant?

1) If black is dominant, they will all have black faces...
2) Again, which is dominant? One dragon is heterozygous and the other is homozygous recessive.
3) Heterozygous? Black faces and whatite faces? Either way, assuming incomplete dominance, it's 50%.
4) Which is dominant?

Jacob Said:

Can you help me with this Genetics worksheet?supereasy!?

We Answered:

your textbook.
try there.

Jamie Said:

punnett squares help ????

We Answered:

Punnett squares are actually quite simple. You place the parental genotype along the outer edge, one allele per box. Then you write the allele in each box directly under it or beside it. For example two heterzygous parents crossed would result in the square below:


R r
R RR Rr

r Rr rr

So the resulting offspring possibilities are 1/4 Dominant Homozygous (RR), 1/4 Recessive (rr), and 1/2 Heterozygous (Rr)

Alexander Said:

help me with punnett squares?

We Answered:

Yep the man is homozygous rr. Because R is dominant over r. So Rr would mean he would be able to roll his tongue.

So
RR = role your tongue (homozygous)
Rr = role your tongue (heterozygous)
rr = unable to role your tongue (homozygous)

So your punit square should look like this

_ | R | r | (woman)
r | Rr | rr |
r | Rr | rr |
m
a
n

So half the kids will be able to role their tongues and half wont.

Deanna Said:

Can someone help me with my homework (Easy 8th grade math)?

We Answered:

what area model. o-o