6. In genetic engineering the transfer of hereditary information from one species to another results in the formation of A. motile gametes B . recombinant DNA C. dihybrids D. zygotes

## Step 1<br />The problem is about genetic engineering, which is a branch of biology. It involves the manipulation of an organism's genes using biotechnology. The question is asking about the result of transferring hereditary information from one species to another.<br /><br />## Step 2<br />The options provided are:<br />A. Motile gametes<br />B. Recombinant DNA<br />C. Dihybrids<br />D. Zygotes<br /><br />## Step 3<br />Let's analyze each option:<br />A. Motile gametes: These are mobile reproductive cells. This option does not directly relate to the transfer of hereditary information between species.<br />B. Recombinant DNA: This is a form of DNA that does not occur naturally. It is created by combining DNA sequences that would not normally occur together. This is a direct result of genetic engineering, where DNA from one species is transferred to another.<br />C. Dihybrids: These are organisms that are heterozygous for two traits. This option does not directly relate to the transfer of hereditary information between species.<br />D. Zygotes: These are the initial cell formed when two gamete cells are joined by means of sexual reproduction. In multicellular organisms, it is the earliest stage of embryonic development. This option does not directly relate to the transfer of hereditary information between species.<br /><br />## Step 4<br />Based on the above analysis, the correct answer is B. Recombinant DNA. This is because the transfer of hereditary information from one species to another results in the formation of recombinant DNA.