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Two dominant nonallelic genes are 50 map...

Two dominant nonallelic genes are 50 map units apart.The linkage is

A

Cis type

B

Trans type

C

Complete

D

Absent/Incomplete

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To solve the question regarding the linkage of two dominant non-allelic genes that are 50 map units apart, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Map Units**: - Map units (or centimorgans) are a measure of the distance between genes on a chromosome. One map unit corresponds to a 1% chance of recombination occurring between two genes during meiosis. 2. **Identifying Gene Arrangement**: - In this scenario, we have two dominant non-allelic genes. The arrangement of these genes can be either in a "cis" configuration (where both dominant alleles are on one chromosome and both recessive alleles on the homologous chromosome) or in a "trans" configuration (where one dominant allele and one recessive allele are on each chromosome). 3. **Distance Between Genes**: - The question states that the two genes are 50 map units apart. This indicates that there is a 50% chance of recombination occurring between these two genes. 4. **Linkage Considerations**: - Linkage refers to the tendency of genes that are located close to each other on a chromosome to be inherited together. However, as the distance between genes increases, the likelihood of recombination also increases. 5. **Analyzing the 50 Map Units**: - Since the two genes are 50 map units apart, this distance is significant enough that the frequency of recombination is high (50%). This means that the genes are effectively unlinked because recombination will occur frequently enough to separate the alleles. 6. **Conclusion**: - Therefore, with the two dominant non-allelic genes being 50 map units apart, we conclude that there is no linkage between these two genes. ### Final Answer: The linkage is absent (no linkage) between the two dominant non-allelic genes that are 50 map units apart. ---
To solve the question regarding the linkage of two dominant non-allelic genes that are 50 map units apart, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Map Units**: - Map units (or centimorgans) are a measure of the distance between genes on a chromosome. One map unit corresponds to a 1% chance of recombination occurring between two genes during meiosis. 2. **Identifying Gene Arrangement**: ...
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