Why is there less energy available at the last link of a food chain?

How are sex-linked traits inherited? Alleles are passed from the parents' sex chromosomes to nonsex chromosomes in the offspring. Alleles are passed from the parents' nonsex chromosomes to the sex chromosomes in the offspring.

What is the importance DNA in the human body

Darwin noticed differences in the beak shapes of finches on the various islands of the Galapagos and surmised that they all might have evolved from a common ancestor on the mainland.

If a sample of DNA contains 40% guanine (G), what percentage of the DNA molecule contains cytosine (C) ?

Who would most likely study the causes of a present-day epidemic? a. an archaeologist b. a human geographer c. a physical geographer d. a historian

Soapberry bugs are small relative to their host plants, and the bugs vary in their abilities to disperse. Although they have wings, many soapberry bugs have developed flight muscles and walk more often than they fly.

Why did early scientists call interphase the resting stage?

You are given two sample tubes, each containing a white powder: your task is to determine if these powders are pure substances and two samples of same substance. briefly describe your strategy for completing your task.

What have you learned about heredity and genetics that could support?

1. If the sequence on a DNA molecule was CCTAG, the complementary sequence on the mRNA would be: GGAUC GGUTC GGATC UUATU