Which of the following statements is true? When you scrape your knee, skin cells are replaced by meiosis.
Blood type is determined by a single gene.
The Punnett Square was invented by Gregor Mendel.
A puppy with Bb fur has the same phenotype as a puppy with BB fur.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Svetlana and her mother are very similar. both have blonde hair, a love of scrapbooking, blue eyes, and a thin nose. which statement  most likely  describes svetlana’s traits? svetlana inherited her love of scrapbooking from her mother, but her blue eyes come from her environment. svetlana inherited her blue eyes from her mother, but her love of scrapbooking comes from her environment. svetlana inherited her thin nose from her mother, but her blonde hair comes from her environment. svetlana inherited her blonde hair from her mother, but her thin nose comes from her environment.

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion