4,064 Answered Questions for the topic biology

Biology

03/14/21

Label The Structures of DNA
Hi, please help me label the structures of DNA in this photo. I have most of them down, but if you could help with 1 and 7 that would be great. Thanks!Link to image: https://imgur.com/i6IT8xL
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03/14/21

What is the amino acid sequence of this DNA? Note: There is a Single nucleotide mutation (underlined and bolded)
5'-TACCGAATAGAAATC-3'
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03/12/21

HELP! stoichiometry has gotten the best of me
Nitrogen dioxide gas and water are placed in a closed container and react to form an aqueous solutionof nitric acid and nitrogen monoxide gas under STP conditions. The following data table... more
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Biology

03/12/21

At the beginning of cellular respiration ____________________________ occurs, where glucose is broken down into pyruvate and ATP. This step does not require any oxygen
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Biology

03/12/21

What is the replication of ATTCGGATATTGCACGTACTACGATTG?
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Biology

03/12/21

What do biologists mean when they use the term 'unit' to refer to cells?
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03/12/21

4. Plants heterozygous for a characteristic that determines petal colour were crossed (AB × AB)
The A allele represents a red phenotype, and the B allele represents a white phenotype. Work out the genotypic numbers if:a. This is an F1 cross. The results will be one AA to two AB to one BB. b.... more
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Biology

03/11/21

Need help pleaseeeee
Dimples is dominant, D, to no dimples, d. Freckles is dominant, F, to no freckles, f. A male heterozygous for dimples and no freckles conceives with a female with no dimples and heterozygous for... more
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Biology

03/11/21

Need help a lot confused

Tall is dominant, T, to short, t. Light skin is dominant, L, to dark skin, l. A homozygous for tall and dark skin male conceives with a short and heterozygous for light skin female. Calculate the... more
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Biology

03/11/21

fill in the table
Factors Promote Enzyme Activity Inhibit Enzyme Activity Explanation Enzyme specificity Temperature Enzyme or substrate concentration pH
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Biology

03/11/21

ITS URGENT HELP WITH BIOLOGY?

3 protein bars were tested to see which of them had the highest amount of carbohydrates. Bar A has an RQ of .65, Bar B has an RQ of 9, and Bar C has an RQ of 4.5.a. Which bar contains more... more
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Biology

03/09/21

Early classification systems of the bacteria (before molecular biology)employed all of the following characteristics except
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Biology

03/09/21

Early classification systems of the bacteria (before molecular biology)employed all of the following characteristics except
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Biology

03/09/21

Calculate the average molar concentration of a protein in a fibroblast. Assume a protein with 400 amino acids and estimate the number of gene products that are expressed in a human cell.

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Biology

03/09/21

Calculate the average molar concentration of a protein in a fibroblast. Assume a protein with 400 amino acids and estimate the number of gene products that are expressed in a human cell.

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Biology

03/09/21

The presence of color blindness (Xᶜ) is recessive to no color blindness (X⁺). Complete the Punnett square that shows Jake's family.
The presence of color blindness (Xᶜ) is recessive to no color blindness (X⁺). Jake and his maternal grandfather are colorblind, but his sister and Dad are not colorblind. Complete the Punnett... more
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Biology

03/08/21

A double helix is shaped like a straight, untwisted ladder.
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Biology

03/08/21

help with biology questions please ?
Sickle-cell anemia is an interesting genetic disease. Normal homozygous individials (SS) have normal blood cells that are easily infected with the malarial parasite. Thus, many of these individuals... more
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03/08/21

. If you know a fluid balance chart is accurate, would it concern you if a patient appeared to be 1L positive each day. Give the reason for your answer
i need help with this question
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03/08/21

How much water do we lose per day?
i need help with this question
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03/08/21

State the 3 ways by which we acquire water
i need help with this question
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03/08/21

1. Explain why some substances are secreted from the blood into the filtrate as it passes along the tubule and why does this vary.
i need help with this question
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03/08/21

Work out what this is in mls/hour then mls/24 hours (day). Show your workings

I need help with this question
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03/08/21

pGLO transformation
Hi!I did a lab about pGLO transformation, and in the instructions, it is said that the heat shock must last for exactly 50 seconds. But why is time so important here?
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Biology

03/08/21

What is the overall energy change if 1,500 g of N2 are reacted to make ammonia?
Ammonia (NH3) is made by the direct combination of H2 and N2 gases according to thisreaction: N2(g) + 3H2(g) → 2NH3(g) + 22.0 kcalWhat is the overall energy change if 1,500 g of N2 are reacted to... more
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