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BartSMP [9]
4 years ago
14

Structure of DNA

Biology
1 answer:
Evgen [1.6K]4 years ago
3 0
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
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Identify what Jean-Baptiste Lamarck believed about traits such as large muscles that are acquired during one's lifetime.
denis23 [38]
<span>What did Jean-Baptiste Lamarck believe about traits such as large muscles that are acquired during one's lifetime?

</span><span>They can be passed on to offspring.
</span>
<span>Jean-Baptiste Lamarck proposed that organisms have an innate tendency toward complexity and perfection.</span>
4 0
3 years ago
What is the genotype at the Q gene?
jenyasd209 [6]
The genotype of the Q gene is homozygous dominant because it has 2 dominant genes and when a genotypes has two of the same type of genes it is homozygous. If it has different genes it is heterozygous. 

hopefully this helps

5 0
3 years ago
What is the 95% CI for data set 2?
vesna_86 [32]

Answer: 20 ± 11.32

Explanation: <u>Confidence</u> <u>Interval</u> (CI) is an interval of values where there is a % certainty the true mean value lies in. For example, a 95% CI means there is a 95% certainty the true mean value lies in the interval.

For the data set 2, z-value for 95% confidence interval is z = 1.96

Formula to calculate CI is

x ± z\frac{s}{\sqrt{n} }

where

x is mean

z is z-value

s is standard deviation

n is the sample number

Then:

20 ± 1.96\frac{10}{\sqrt{3} }

20 ± 1.96\frac{10}{1.7320}

20 ± \frac{19.6}{1.7320}

20 ± 11.32

The 95% CI is 20 ± 11.32, which means there is a 95% certainty the true value is between 8.68 and 31.32.

8 0
4 years ago
While taking a walk around the neighborhood, a student walks into a tree branch and cuts their arm. Which explanation BEST descr
DaniilM [7]

Answer:

C

Explanation:

First off, humans are considered animals, and since animal cells don't have chloroplasts, A and D are immediately incorrect. B is incorrect because lysosomes eject enzymes that digest materials in the cell, and to heal skin, you dont need to digest anything/ use enzymes to get rid if materials. That means the answer is C. The nucleus is the control center for the cell, so it tells the cell what to do. The mitochondria creates energy for the cell, and since it takes energy to heal, this answer is correct. (Tip- I find that using process of elimination in biology questions helps a lot.) Good luck!

3 0
3 years ago
This is the period of cell life during interphase between the synthesis of new genetic material and the beginning of mitosis.
RoseWind [281]
The period you’ve described would be the G2 phase which is considered a “checkpoint” that determines whether or not a cell can enter the mitosis phase
4 0
4 years ago
Read 2 more answers
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