. En el ganado Shorthorn el genotipo CRCR produce el pelo rojo, el CWCW el blanco y el CR/CW el color ruano (rojo y blanco). La presencia de cuernos se debe al recesivo a y la falta de cornamenta al dominante A. Si apareamos vacas ruanas heterocigóticas para los cuernos, por lo tanto sin cuernos, con toros ruanos con cuernos ¿Qué proporciones fenotípicas esperaríamos en la descendencia?.

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

All eukaryotic cells contain small bodies called