Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    7
    ReputationRep:
    A gene in cattle controls whether horns develop or not. When cattle without horns are mated together, none of the offspring ever have horns. A male with horns is mated with females without horns. If half of the offspring have horns and half do not, what is the conclusion?

    The answer is a heterozygous

    Can anyone please help me explain why?
    Thanks!
    Offline

    18
    ReputationRep:
    (Original post by PleaseHelpAsap)
    A gene in cattle controls whether horns develop or not. When cattle without horns are mated together, none of the offspring ever have horns. A male with horns is mated with females without horns. If half of the offspring have horns and half do not, what is the conclusion?

    The answer is a heterozygous

    Can anyone please help me explain why?
    Thanks!
    When cattle without horns are mated together, none of the offspring ever have horns. this means that not having horns is recessive as if it was dominant one of the parents could be heterozygous and some offspring would have horns.if the horned male was homo dominant all kids would have horns as mum is recessive therefore he must heterozygous
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Would you like to hibernate through the winter months?
    Applying to university
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.