An extra copy of chromosome 21 in humans causes

Down syndrome

cystic fibrosis

HIV

none of the above

The characteristic of the earth that causes the coriolis effect is

What is it called when a molecule moves across a semipermeable membrane into a region of high concentration? A. Diffusion B. Active transport C. Passive transport D. Osmosis

How has the discovery of DNA affected the classification of protists? Select three options. Many scientists want to get rid of the kingdom Protista. Some organisms have been moved out of the kingdom Protista.

Write down 3 ways pollination can occur without animals

A frozen yogurt shop offers scoops in cake cones, waffle cones, or cups. You can get vanilla, chocolate, strawberry, pistachio, or coffee flavored frozen yogurt.

Label the steps for protein synthesis in order, beginning with the first step. step onestep twostep threestep four step five Once the protein is made, the gene for a particular trait is expressed.

In humans, the ability to produce the pigment melanin is dominant over the lack of that ability, a condition known as albinism.

A researcher has sequenced a gene that has two alleles. she has a mixture of both alleles and clones them into e. coli using plasmids. she is interested in one particular allele that is correlated with a disease.

List 3 roles of DNA in relation to genetic information:

Select all the offspring phenotypes that could be produced from a BbEE x bbee cross (shown above). black fur, red eyes black fur, black eyes white fur, black eyes white fur, red eyes