Tonegawa Comprehension Questions

$B Question 7: Paragraph 4

$B

$B$D$.$N!!$V$s$N!!(B(1)$B$+$i!!(B(3)$B$G!"$?$@$7$$$N$O!!$I$A$i$G$7$g$&!#!!$"$C$F(B $B$$$k!!$/$_$"$o$;$r!!(BA-D$B$N!!Cf$+$i!!$($i$S$J$5$$!#(B

Which is the right word in (1), (2) and (3)? Choose the appropriate combination from A-D.

(1) [$B@8?#!&BN(B]$B:YK&$NCf$N93BN0dEA;R$O!"$3$l$^$GCN$i$l$F$$$?!"$$$m$$$m$J(B $B0dEA;R$H$O9=B$$,Hs>o$KJQ$o$C$F$$$F!"7Z:?$N(B(2) [$BITJQ!&2DJQ(B]$BNN0h$O(BDNA$B>e(B $B$G!"$"$k5wN%$rCV$$$F!"$$$/$D$+$NG[Ns$KJ,$+$l$F%3!<%I$5$l(BG (ID$B$*$j!"(B(3) [$BITJQ!&2DJQ(B]$BNN0h$r%3!<%I$9$kItJ,$O!"FH<+$N(BDNA$B$NG[Ns$,$"$k!#(B

(1) [$B$;$$$7$g$/!&$?$$(B]$B$5$$$\$&$N!!$J$+$N!!$3$&$?$$$$$G$s$7$O!"$3$l$^$G(B $B!!$7$i$l$F$$$?!"$$$m$$$m$J!!$$$G$s$7$H$O!!$3$&$>$&$,!!$R$8$g$&$K!!$+$o$C(B $B$F$$$F!"$1$$$5$N!!(B(2) [$B$U$X$s!&$+$X$s(B]$B$j$g$&$$$-$O!!(BDNA$B$8$g$&$G!"$"$k(B $B$-$g$j$r!!$*$$$F!"$$$/$D$+$N!!$O$$$l$D$K!!$o$+$l$F!!%3!<%I$5$l$F$*$j!"(B (3) [$B$U$X$s!&$+$X$s(B]$B$j$g$&$$$-$r!!%3!<%I$9$k!!$V$V$s$O!"$I$/$8$N!!(BDNA $B$N!!$O$$$l$D$,$"$k!#(B

In (1)[germ$B!&(Bsomatic] cell antibody genes have very different structures from various known genes. (2)[constant$B!&(Bvariable] region of the light chain is coded separetly in several sequences some distance apart in the DNA. The part coding (3)[constant$B!&(Bvariable] region has its own DNA sequence.

 
A.  (1) $B@8?#(B (2) $BITJQ(B (3) $B2DJQ(B
    (1) $B$;$$$7$g$/(B (2) $B$U$X$s(B (3) $B$+$X$s(B
    (1) germ (2) constant (3) variable

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