Answer: 1:2:1
Explanation:
The genotypic ratio is 1:2:1 whereas, the phenotypic ratio is 3:1 in the monohybrid cross. 2. Dihybrid cross: It is simple defined as the cross between two pairs of contrasting characters or parental alleles. Pea shape and color are used to conduct the dihybrid cross test.
Use these 2 links to help you with more problems like this
you can just click on it if you can't copy and paste it
https://www.chegg.com/learn/biology/introduction-to-biology/cross-between-two-pea-plants
https://www.albert.io/blog/dihybrid-cross-ap-biology-crash-course/#:~:text=A%20cross%20between%20two%20plants%20that%20are%20heterozygous,alleles%29%20parents%20this%20will%20always%20be%20the%20ratio.
The correct answer to this question is this one: they lacked oxygen. The earliest organisms were completely heterotrophic in nature because of the reason that they lacked oxygen. <span>A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth. </span>
