Answer:
Weight in mice is a polygenic trait
Explanation:
Her observation might be as a result of the weight trait being a polygenic trait. A polygenic trait is a trait are train that are controlled by two or more genes. Additive interactions of these genes can influence expression of the trait. Thus weight is expression of a trait influenced by two or more genes. This to knock out the trait, she has to all genes involved in the expression and not just one gene.
Answer:
B. All antigen receptors produced by a single B or T cell are identical and bind to the same epitope.
Explanation:
Antigen receptors are antibody protein anchored to the B-cell membrane.
They are all identical when the antigen receptors is located on one type of B cell making Binding between the receptor and epitope to occur since its structures are complementary. It's not identical when the antigen receptors is located on different types of B cell
Answer:
maintain homeostasis
Explanation:
Lizards are poikilothermic organisms, it means that their body temperature varies over the course of the day. There are poikilothermic organisms including lizards that bask in the sun during the morning and evening hours, and thus they can increase the body temperature
They always increase in numbers
Answer:
Tributaries
Explanation:
I wound think that they would be branching of so thats what i would say