6. chromosome contains genes in the following order: ABCD • EFGH which of the fo
ID: 132501 • Letter: 6
Question
6. chromosome contains genes in the following order:
ABCD • EFGH
which of the following rearragements represents an pericentric investment ?
A) ABC•DEFGH
B) AFGH•BCDE
C) ACBD•EFGH
D) AFDE•CBGH
E) ABCD•HGFE
7. chromosome contains genes in the following order: ABCD•EFGH
Which of the following rearragements represents an paracentric investment?
A) ABC•DEFH
B) AFGH•BCDE
C)ACBD•EFGH
D)AFDE•CBGH
E) ABCD•HGFE
8. the heterocigóticos for a translocation balanced, what pattern segregation chromosomal produces gametes viable and progeny?
A) segregation adjacent 1
B) segregation adjacent 2
C) segregation, alternate
D) segregation, alternate and adjacent 1 both are viable
E) segregation adjacent 1, adjacent 2 and alternate all are viable
9. with which of the following rearreglos chromosome is Associated the pseudodominancia?
A) duplication part
B) deletion partial
C) investment pericéntrica
D) translocation reciprocal
E) none of the previous
Explanation / Answer
Ans6:
A pericentric inversion involves the centromere (structure at junction of short and long arm of a chromosome). Out of the given options , (i) is not an inversion, but just a change in position of centromere , (ii) does not involve any inversion in the segment comprising the centromere , (iii) is a paracentric inversion , (iv) is a pericentric inversion. It involves inversion in centromere.
So, Correct choice should be
6-D ) AFDE•CBGH
7: (c)
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