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My name is Ann [436]
3 years ago
11

Choose the best definition of a fossil. any trace of an organism that has been converted into rock the process that leads to pre

servation of any body part from an organism that lived in the past any trace of an organism that lived in the past a bone, tooth, shell, or other hard part of an organism that has been preserved
Biology
1 answer:
Mamont248 [21]3 years ago
7 0
<span>The best definition of a fossil is any trace of an organism that lived in the past. Technically, a couple of the other choices (i.e. trace of an organism turned to rock, a hard part of an organism that has been preserved) could be considered within this group.</span>
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Some major concerns of life science are
Anuta_ua [19.1K]
<span>pollution, mineral location, and new energy sources space exploration and national defense microbiology advancements and cloning procedures

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6 0
3 years ago
Suppose a population is carrying a condition controlled by two alleles: R (dominant) and r (recessive). Only homozygous individu
White raven [17]

<span><u>The answer is A. 72.25 percent.</u>

The Hardy-Weinberg principle can be used:</span>

<em>p² + 2pq + q² = 1</em> and <em>p + q = 1</em>

where <em>p</em> and <em>q</em> are the frequencies of the alleles, and <em>p²</em>, <em>q²</em> and <em>2pq </em>are the frequencies of the genotypes.

<span>The <em>r</em> allele (<em>q</em>) is found in 15% of the population:
q = 15% = 15/100
Thus, q = </span><span>0.15

To calculate the <em>R</em> allele frequency (<em>p</em>), the formula p + q = 1 is used:
If p + q = 1, then p = 1 - q
p = 1 - 0.15
Thus, </span><span>p = 0.85

Knowing the frequency of the <em>R</em> allele (<em>p</em>), it is easy to determine the frequency of the RR genotype (p²):
p² = 0.85² = 0.7225

Expressed in percentage, p² = 72.25%.</span>

4 0
2 years ago
Cold food should be received at or below an internal temperature of
alexdok [17]

0-4 degrees Celsius, below which bacteria grow very slowly.  This is the same as refrigerator temperature.

Please use __________ to indicate fill-in-the-blank questions.

Otherwise the question could end up being deleted for incomplete question.

7 0
3 years ago
1. A student is completing a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The father
zvonat [6]

Answer:

C

Explanation:

autsomsal means that it is not x-linked/ realted to gametes. Dominate means that it needs only one X to get the trait

Using the punnet square

             X       x

      x     Xx   xx

      x     Xx   xx

there is 2 X which means there is a 50% change that their child will get the trait

5 0
3 years ago
Why won’t a sample of DNA from saliva work in gel electrophoresis
Kitty [74]
Because dna won't bond corectly
6 0
3 years ago
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