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wlad13 [49]
3 years ago
15

What conclusion about Mars can you draw from the article?

Biology
1 answer:
Schach [20]3 years ago
3 0

Explanation:

mars may have once been a weet world like earth . the latest from mars it also will be the first spacecraft to collect samples of the martian surface

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Describe two major differences between the appearance of granite and basalt
Anna007 [38]

Answer:

The difference between granites and basalts is in silica content and their rates of cooling. A basalt is about 53% SiO2, whereas granite is 73%. Intrusive, slowly cooled inside the crust.

I Hope it Helps:)

8 0
3 years ago
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i need help with this question that is on my homework, is it ok if someone helps me please. thanks to anyone who helps! :)
barxatty [35]
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The engine

Reasoning:
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2 years ago
A polypeptide in a wild type microbe contains the sequence leu-pro-tyr-ser-pro. a phenotypic variant of the species has the pept
nalin [4]

<span> The answer is a misense mutation. In this case, the substitution of the tryosine  amino acid with cysteine in the same position in the sequence does not affect the polypeptide becasue both tryosine and cysteine are polar animo acids. If the substitution </span><span><span> in the polypeptide chain </span>was by amino acids with different properties, it would affect the folding of the protein and change its conformation hence also affect its function. </span>







5 0
3 years ago
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Which statement describes experimental evidence?
Xelga [282]

Answer:

Results are validated when other scientists performs the same experiment and conclude with the same result.

Explanation:

Experimental evidence gives confirmation especially in science.Scientists starts an experiment by following some protocols such as observation,hypothesis,collection of data literature review,methodology,Experiments (trial and tests) finally results and discussion.Results are validated as experimental evidence. Eventually come to a conclusion.

6 0
3 years ago
Alkaptoneuria is a recessive genetic disorder found among North American populations at a frequency of about 1 in 500,000 births
Dafna11 [192]

Answer:

The correct answer is - 1/41,493

Explanation:

Let assume the frequency of the two possible same allele genotype (dominant and recessive) in an inbred population is p and q. Then the frequency of heterozygotes (H) is denoted as:

2pq + 2pqF.  ( where F is the inbreeding coefficient).

The frequency of the two different hoozygotes in inbred population can be calculated as:

p2 + pqF and q2 + pqF. (Where p and q are the allele frequency of the dominant and recessive phenotype.

Given: Frequency of Alkaptonuria (q 2) = 1:500, 000

=> q = 1/707

p = 706/707 ( Approx values)

solution:

Inbreeding coefficient (F) = 1/64

Therefore,

Frequency of Alkaptonuria in second cousins= q 2 + pqF

= 1/500, 000 + (706/707 x 1/707) x (1/64)

= 1/500, 000 + 1/45, 248

= 1/41,493 (approx)

5 0
3 years ago
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