When a person's red blood cells have neither A nor B antigens, what is the blood type of this person?
A. A
B. AB
C. B
D. O

Question

When a person's red blood cells have neither A nor B antigens, what is the blood type of this person?
	A.	A
	B.	AB
	C.	B
	D.	O

opcode · Answer

D. O

anonymous · Answer

If a male white-eyed fruit fly is crossed with a female red-eyed fruit fly, and all the fruit flies in the F1 generation have red eyes, what is the dominant allele for eye color
	A.	Black
	B.	Blue
	C.	Red
	D.	White

opcode · Answer

I'm not sure.
I'm guessing Red thou.

anonymous · Answer

If a patient with blood type O needs a transfusion, which of the following is a complete list of blood types that the patient can accept?
	A.	O
	B.	AB, O
	C.	A, B, O
	D.	A, B, AB, O

opcode · Answer

A. O
Fun fact time!
O can give to --> A,B,AB
O can only receive --> O

anonymous · Answer

wow i learnd something XD

anonymous · Answer

What is the major purpose of pedigree?
	A.	To determine the average age of a family
	B.	To find out family histories and medical records
	C.	To find out whether a couple can have a boy or a girl
	D.	To trace the inheritance of a certain trait through generations

opcode · Answer

D. To trace the inheritance of a certain trait through generations.

anonymous · Answer

Which of the following correctly shows the sex chromosomes for female and male fruit flies, respectively?
	A.	XX, XX
	B.	XX, XY
	C.	XY, XX
	D.	XY, XY

anonymous · Answer

3 more :D

opcode · Answer

At the beginning of this chapter, we discussed how sex determination in certain species is controlled by sex chromosomes. In fruit flies and mammals, a female is XX, whereas a male is XY. 
So B.

anonymous · Answer

ohh i get it 
What are the male reproductive cells?
i forgot if it was eggs or keponotyeps or idk how to spell

anonymous · Answer

karyotypes

opcode · Answer

Male: Spermatozoa; Testosterone 
Female: Egg/Ovum; Produced at birth

anonymous · Answer

If Freddy and Freida are connected to each other on a pedigree diagram by a horizontal line, what does this mean?
	A.	One was the parent of the other.
	B.	They were sexual partners.
	C.	They were siblings.
	D.	They were unrelated.

opcode · Answer

A horizontal line connecting a male and female is called a marriage line.
So B.

anonymous · Answer

ok thx u a lot

opcode · Answer

No problemo :)