A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino?

Question

anonymous · Answer

@Qu33n_kay

anonymous · Answer

is this how you do it       |dw:1412347001752:dw|

anonymous · Answer

im not sure

anonymous · Answer

@marylou004

anonymous · Answer

@Qu33n_kay

anonymous · Answer

The probability that each of these people is a carrier of the albino allele is 1/2. IF they are both carriers, then the chance that their first child will be albino is 1/4.

So, the overall probability that their first child will be albino is: 1/2 X 1/2 X 1/4 = 1/16

anonymous · Answer

this one im not sure of but i think thats the correct answer

anonymous · Answer

okay thats what i though but also i have another question.
How does crossing over add to the genetic diversity of sexually reproducing organisms?

anonymous · Answer

@shrutipande9

shrutipande9 · Answer

Yes u r absolutely right..:D

anonymous · Answer

@green510 Crossing over does not have a sexual reproducing. Crossing over means after death your soul either goes to haeven or hell

anonymous · Answer

The advantage of sexual reproduction is that it increseas diversity by mixing up genes in each generation. "Crossing over" of genes from one chromosome to another during meiosis (replication of chromosomes for sexual reproduction) is another way in which genetic material is remixed for the next generation.

shrutipande9 · Answer

@Qu33n_kay we humans still havent got the proof that there is heaven or hell...so until then..crossing over in biology means sexual reproduction and interchange of alleles.

anonymous · Answer

@shrutipande9 did you not read my last post ??

anonymous · Answer

@shrutipande9 @Qu33n_kay  What is the benefit of an uneven production of gametes in oogensis?
A)One haploid cell receives the majority of the nutrients from the cytoplasm.
B)The homologous chromosomes are passed on to one haploid cell.
C)Two mature ova are available for fertilization with sperm.
im pretty sure the awnser is either a or c but im not sure

anonymous · Answer

A.one haploid cell receives the majority of the nutrients from the cytoplasm

anonymous · Answer

@green510

anonymous · Answer

oh ok i kinda figured i was just making sure

anonymous · Answer

okay

shrutipande9 · Answer

i am not sure with this one. i havent heard of benefits due to uneven rpoduction