In mendel's experiment, why did wrinkled seeds show up in the f2 generation, even though they were not present in the f1 generation? a. the f2 generation was homozygous. b. the f1 generation carried recessive alleles. c. the f2 generation carried only dominant alleles. d. the f1 generation was homozygous.

B. The F1 generation carried recessive alleles.

Explanation: Recessive alleles are able to express only when these alleles are present in homozygous state. This means that only two recessive alleles together can show the respective phenotype. In F1 generation, since the genotype was heterozygous, for eg Rr, it was expressing the dominant trait only, i.e. round seeds. But after selfing of Rr and Rr in F2 generation, rr was formed. That is why, F2 contained wrinkled seeds.

the answer is d.) homologous; have mammary glands

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.