Answer:
Extrusive igneous rock is formed by the crystallization of magma release after volcanic eruption at the Earth surface. They are characterized by fine grained textures because of rapid cooling they do not form large crystals. Extrusive rocks with fine grained textures are called aphanitic rocks. The most common extrusive igneous rock is basalt. Other examples include rhyolite, andesite and obsidian. Extrusive igneous rocks erupt quickly and they form small crystals. Some of these rocks cools slowly that they form glass. These rocks includes andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria and tuff.
The common characteristic of extrusive igneous rock is the b. forms crystals
Rapid cooling of magma produces small crystal rocks.
Answer:
Qualitative data is based on the quality of something an example can be the quality of a camera.
Quantitative data is based on quantity (numbers) an example can be the number of students at a football game
HOPE IT HELPED!! Please give it the best answer.
Explanation:
It is A. meiosis im pretty sure :)
How do the genes in our DNA influence our characteristics? For example, how can a gene determine
whether a person is an albino with very pale skin and hair?
Basically, a gene is a segment of DNA that provides the instructions for making a protein, and
proteins influence our characteristics. This chart describes how two different versions of a gene result
in two different versions of a protein which in turn can result in either normal skin and hair color or
albinism.
DNA Protein Characteristic
Version of the gene that provides
instructions to make
normal protein enzyme
Normal enzyme that makes the
pigment molecule in skin and
hair
Normal skin and hair
color
Version of the gene that provides
instructions to make
defective enzyme
Defective enzyme that does
not make this pigment
molecule
Albinism (very pale
skin and hair)
A gene directs the synthesis of a protein by a two-step process.
The first step is transcription of the gene in the DNA.
Transcription produces a messenger RNA (mRNA) molecule.
The second step is translation of the mRNA molecule.
Translation produces a protein molecule.
During transcription, the sequence of
nucleotides in a gene in the DNA is
copied to a corresponding sequence
of nucleotides in mRNA.
During translation, the sequence of
nucleotides in the mRNA determines
the sequence of amino acids in the
protein.
After translation, the sequence of amino acids in the protein determines the structure and function of
the protein. Differences in protein function can influence characteristics such as normal skin and hair
color vs. albinism.