Identify the genotype of the hornless cow at the top of the pedigree. Use H for hornless and h for horned. Remember that cows are diploid, and a single gene determines the horned/hornless trait.

If you do the punnet square, This is would you could get, and this could determine whether the cow would be hornless or horned. In this case hornless because it is the donminint trait as well. (H)

Explanation:

           h       h

H         Hh      Hh

H         Hh      Hh

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation: