please help me answer these question , thank you!
To determine whether this is an X chromosome or an autosome, a researcher would have to determine whether these traits are
Question options:
recessive
dominant
passed from male parents to their male offspring
passed from female parents to their male offspring
In humans, the allele for normal blood clotting (H) is dominant to the allele for hemophilia (h). The trait is X-linked.
A female hemophiliac marries a man who is not a hemophiliac. Which of the following rows indicates the probability of this couple having a child that is a hemophiliac and indicates the sex that the child would?
Row Probability Sex of Affected Child
A. 0.25 male
B. 0.25 either female or male
C. 0.50 male
D. 0.50 either male or female
If the farmer is trying to grow the tallest corn plants which way(s) is the most ineffective in determining this?
Question options:
co-dominant alleles
multiple alleles
polygenic inheritance
By using the following method(s) the farmer can choose specifically tall corn plants, and doesn't have to deal with varying sizes, this is why it is most effiecient.
Question options:
polygenic inheritance
multiple alleles
co-dominant alleles
You conduct a cross and the results are as follows:
wing<-7.4units->body col<--12.2units-->eye col.
<wing----------------19.6units ---------->eye col.
You do the same cross again, but this time you get an almost exact 1:1 ratio of flies with normal eyes and normal wings to flies with purple eyes and vestigial wings. There are no recombinant types. Why could this be? Select the correct statement(s).
Question 15 options:
A double cross over event has taken place and the genes are then returned to the original place.
A double cross over event does not occur unless the genes are too close.
Genes that are too close are physically not able or very rarely able to cross over.
The genes are really far apart.
A double cross over event has taken place and the genes are removed.
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