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mr Goodwill [35]
3 years ago
11

Which of the following structures are found in gymnosperms but not in angiosperms?

Biology
1 answer:
umka21 [38]3 years ago
3 0
A pollen, Most plants produce asexually , and pollen is produced. 
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In cats, the gene for Calico (multicolored) cats is an x-linked trait that is
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Answer:

Considering the <u>whole progeny</u> (100%), there will be

  • 25% Black male kittens, XBY
  • 0% Calico Male kittens
  • 25% Calico female kittens, XBXR

Explanation:

<u>Available data:</u>

  • The gene for Calico (multicolored) cats is an x-linked trait and codominant
  • Calico Females receive a "B" and an "R" gene, and have black and orange splotches on white coats. Their genotype is XBXR.
  • Males can only be black or orange, but never calico. Their genotype is XBY and XRY

Cross: a female calico cat with a black male

Parentals)   XBXR    x    XBY

Gametes)  XB  XR       XB   Y

Punnett square)    XB        XR

                   XB   XBXB   XBXR

                    Y      XBY      XRY  

F1) Among the whole progeny:

  •     2/4 = 50%  will be black (female XBXB and male XBY)
  •     1/4  = 25% will be Calico (female XBXR)
  •     1/4  = 25% will be Orange (male XRY)  

   Among females:

  •    1/2 = 50% of females will be black, XBXB
  •    1/2 = 50% of females will be Calico, XBXR

   Among males:

  •    1/2 = 50% of males will be black, XBY
  •    1/2 = 50% of males will be orange, XRY        
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Which of the following could cause low blood pressure?
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Answer:

B) A kidney malfunction that removes more water than normal

Explanation:

Just took the test :)

Also, the answer choice is worded differently for me. The alternative answer is "A kidney malfunction that removes more water than normal".

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