Предмет: Биология, автор: dhg

РЕЕЕЕЕЕЕЕШИТЕ ПОЖАЛУУУУУЙСТААААААААА,МОЖНО СФОТОГРАФИРОВАТЬ РЕШЕНИЕ!!!!!!!!! Дочь дальтоника выходит замуж за сына другого дальтоника, причем жених и невеста различают цвета нормально. Каким будет зрение у их детей?

Ответы

Автор ответа: tory16
0

дальт. а, аа
норм. А, АА, Аа

если они дети дальтоников, а сами нормальные, то их генотип будет Аа
Р: Аа  х  Аа
G: А, а  ;    А, а
F: АА (норм)
Аа(норм)
Аа (норм)
аа(дальт)

Автор ответа: Rgem
0

Х(д) - ген дальтонизма

ХХ(д)+ХУ

ДЕти:
ХХ-девочка,послность здововая

ХХ(д)-здоровая девочка,но с геном(алельным)
Х(д)У-мальчик - дальтоник

ХУ-мальчик,послостью здовов

ХХ(д)-хоть и с геном,но здорова,потому,как у нее от отца нормальная перекрывает плохую от матери.

Тоесть:25%дальтоники 75%нормальные будут
50%мальчиков - дальтоники
100% девочек здоровы

 

 

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1.Every man, woman and child in Britain will soon have one – or two, or three!
2.They can be expensive and are possibly bad for us.
3.Teenagers are among the small users of mobiles
4.Surveys show teenagers are reading less and mobile use is affecting the marks of primary school learners.
5.Last year half a million British teenagers were victims of mobile phone theft.
6.As technology improves, mobiles can do more and more.
7.If you have one of the new multimedia mobiles, you can log on the net, pay for things, play films, interact with TV programs and take photos to send to your friends.