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OleMash [197]
3 years ago
5

How do rates of mutation "power" molecular clocks?

Biology
1 answer:
Keith_Richards [23]3 years ago
6 0

<span>Molecular clocks use rates of mutation to measure evolutionary time. Mutations add up at a fairly constant rate in the DNA of species that evolved from a common ancestor. The more mutations that happened in each lineage, the greater is the differences between these lineages.</span>

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Which cross shows both parents having two different alleles for each of two different genes?
shtirl [24]

Answer:

The correct option is Number 1. AaBb x AaBb

Explanation:

Genes can be described as basic hereditary units. The genes are made up of DNA.

A gene carries two alleles for a particular trait. These alleles are present at the same loci in the homologous chromosomes. If the two alleles are similar then they are termed as homozygous e.g AA, BB. If the alleles for a trait are different then they are termed as heterozygous e.g Aa and Bb.

7 0
3 years ago
How does the feild that surrounds the electromagnet differ from the Earths magnetic field
tino4ka555 [31]

The differences between the geomagnetism and electromagnetism are given below.

<h3><u>Explanation</u>:</h3>

Geomagnetism is defined as the magnetic field that is located all around the earth. Whereas electromagnetism is defined as the magnetic field that is produced due to passing of electricity through a conductor.

The geomagnetism is formed because of the molten elements of iron etc which are present inside Earth's core, and are continuously moving. It mostly resembles the solid block magnet in its field characteristics. But electromagnetism is different. It can be changed according to the current input which isn't possible for Earth’s magnetic field.

4 0
3 years ago
The leading causes of death in middle age are __________ and __________. cancer; cardiovascular disease motor vehicle collisions
Darya [45]
The correct answers are "cardiovascular diseases and cancer."

Cardiovascular diseases is a classification of illnesses that involves the heart and the blood vessels of the body, which may sometimes lead to a heart attack. While cancer is described as an abnormal cell growth inside the body of a person causing an invasion of a specific part or organ of the body, which may also spread if not treated well. The most common cancer for men is the prostate cancer, on the other hand, the common cancer seen in females is breast cancer.
7 0
3 years ago
Help please this heavy work
Nimfa-mama [501]

I could help if I knew what you needed help with

6 0
3 years ago
The blueprint (or set of instructions) to make a protein is called
Andrews [41]
It is called DNA.

Hope this helped :)
8 0
3 years ago
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