When was Valentine supposedly executed? A: This was on February 14, 269 A.D.. B: This was on March 14, 269 A.D.. C: This was on July 7, 269 A.D.. D: This was on January 14, 269 A.D..
When was Valentine supposedly executed? A: This was on February 14, 269 A.D.. B: This was on March 14, 269 A.D.. C: This was on July 7, 269 A.D.. D: This was on January 14, 269 A.D..
/ananas/latex/p/1802
/ananas/latex/p/1802
下列杂交或自交实验中,子一代能出现性状分离的是() A: DD×dd B: dd×dd C: DD×DD D: Dd×Dd
下列杂交或自交实验中,子一代能出现性状分离的是() A: DD×dd B: dd×dd C: DD×DD D: Dd×Dd
父亲的基因型是DD,母亲的基因型是dd,子代的基因型是() A: DD B: Dd C: dd D: DD或dd
父亲的基因型是DD,母亲的基因型是dd,子代的基因型是() A: DD B: Dd C: dd D: DD或dd
Dd和dd杂交会出现dd或Dd吗
Dd和dd杂交会出现dd或Dd吗
已知豌豆的高茎(D)对矮茎(d)为显性,在杂交试验中,后代有50%的矮茎,则其亲本的基因型是 A: DD×dd B: DD×Dd C: Dd×Dd D: Dd×dd E: dd×dd
已知豌豆的高茎(D)对矮茎(d)为显性,在杂交试验中,后代有50%的矮茎,则其亲本的基因型是 A: DD×dd B: DD×Dd C: Dd×Dd D: Dd×dd E: dd×dd
1海里等于()米。 A: 1802 B: 1822 C: 1852 D: 1872
1海里等于()米。 A: 1802 B: 1822 C: 1852 D: 1872
英国1802《学徒健康与道德法》颁布的意义?
英国1802《学徒健康与道德法》颁布的意义?
十进制数269转换成十六进制数是
十进制数269转换成十六进制数是
十进制数269转换成十六进制数是
十进制数269转换成十六进制数是