What is biological determinism?  (Hint: are you destined to have the phenotype typically associated with your genotype?  Do your genes determine your destiny?)  Explain the misconception of biological determinism.

Most sheep have the ability to grow coats of wool that vary in their thickness depending on the ambient temperatures that they experience. This is an aspect of phenotypic plasticity, variability in the phenotype that can be triggered by the experiences of the organism. When referring to a sheep that has grown more wool in a cold climate than its parents living in a warm one, what term best describes this? (NOTE: look back at chapter 25, if you are having trouble remembering) O Adaptation Intersexual selection Intrasexual selection Acclimitization Gene Fixation

in humans, as well as with many other animals, sex is determined by special sex chromosomes. An individuai containing two X chromosomes is a female, while an individual possessing an X and Y chromosome is a male. The sex chromosomes bear alleles for traits. Sex linkage applies to genes that are located on the sex chromosomes. These genes are considered sex-linked because their expression and inheritance patterns differ between males and females. The genes present on the X chromosome are said to be X linked. Many more genes are present on the A chromosome than found on the Y chromosome. Nonetheless, those genes found on the Y chromosome are said to be Y linked. The Y chromosome is smaller than its homoloque, the X chromosome. Consequently, most of the loci present on the X chromosome are absent on the Y chromosome. 1. In humans, hemophilia is a sex linked trait. Females can be normal, carriers, or have the disease. Males will have the disease or not (but they won't be ever carriers) XH…

Which allele is an example of a loss-of-function allele?

The father of three sons and two daughters begins to show symptoms of Huntington disease. What is the probability that Sam, the man’s second oldest son (II-2), will suffer from the disease if he lives a normal life span? Sam’s mother and her ancestors do not have the disease. Sam's father was adopted, so we do not know his biological family history for Huntington disease. Explore all possible outcomes for Sam and explain your reasoning. What about the risk to Sam's sisters? Would that be the same or not?

What are two possible explanations for why the same genotype (DNA) can result in different phenotypes (result)