What happens to the chromosomes number during meiosis

In pea plants, yellow seed color (Y) is dominant and green seed color (y) is recessive. Based on the Punnett squares, what are the chances that the offspring in the second generation will have green seeds?

A DNA molecule produced by combining DNA from different sources is known as ... ?

The new DNA results on the so-called Denisovan skeletal remains, dated to 41,000 years ago, showed that these hominins were genetically different from both Neanderthals and anatomically modern humans but were more similar to Neanderthals than to

Systematists have used a wide variety of traits to reconstruct the phylogenies of particular groups of organisms. Which one of the following traits produces a good estimate of phylogeny. A. Gross Morphological Traits B. Molecular Traits C.

What is the main difference between dispersal and vicariance? One leads to allopatric speciation, whereas the other leads to sympatric speciation. One involves the movement of the organism, and the other involves a change in the environment.

1. Which cells form the stomata? A. sieve cells B. guard cells C. phloem cells D. mesophyll cells 2. What is the first structure to prevent water loss in the leaf called? A. cuticle B. stomata C. epidermis D. mesophyll 3.

If Squidward had children and he was a purebred would his children be considered purebreds?

Cystic fibrosis is a genetic disease in humans in which the CFTR protein, which functions as a chloride ion channel, is missing or nonfunctional in cell membranes.

In most of the body, the arteries carry oxygenated blood and the veins carry deoxygenated blood. The exception to this pattern is the heart.

How is nitrogen obtained by animals