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wolverine [178]
2 years ago
5

The percentage of crossing-over between 4 linked genes (K, L, M, N) are below. Put them in the correct sequence.

Biology
1 answer:
Alla [95]2 years ago
4 0

Answer:

NL=8, JK=2, KL=2, LM=2

Explanation:

K is between J and M

JM=JK+KM

JM=KL+KM

JM=2+4

JM=6

The length of JM is 6 units.

From the figure it is clear that

MN=JN-JM

MN=14-6

MN=8

From the figure it is clear that

NL=ML+MN

NL=2+8

NL=10

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Process where organic matter and nutrients build up in a body of water and increase plant growth
Artist 52 [7]

Answer:

Eutrophication

Explanation:

Eutrophication is the process where organic matter and nutrients build up in a body of water and increase plant growth.

3 0
3 years ago
Calcule la molalidad de una<br> 20g Ca Cl₂ en 250g de<br> que contiene<br> solucion<br> H₂O.
ahrayia [7]

Answer:

The solution is 0, 90 molal. See the explanation below, please

Explanation:

Molality is defined as moles of solute in 1 kg of solvent (1000 grams). The following three simple rule must be performed:

We calculate the weight of 1 mol of CaCl2

Weight Ca =40, 078 g

Weight Cl= 35, 453 g

Weight of 1 mol of CaCl2=40, 078g + 2x (35, 453g )= 110, 98g

110, 98 g ---1 mol

25 g---X= (25g x1 mol)/110, 98g= 0,23mol

250g solvent -----0,23 mol CaCl2 (the solute)

1000g solvent ----X = (1000g x0,23mol)/250g =0,90 mol solute

The solution is 0,90 molal

8 0
3 years ago
A client presents to the ed reporting anxiety and chest pain after shoveling heavy snow that morning. the client says that nitro
Aneli [31]
There are choices for this question namely:

Ativan 1 mg orally 
<span>Nitroglycerin SL </span>
<span>Serum electrolytes </span>
<span>Chest x-ray
</span>
The correct answer is "Nitroglycerin SL". The SL means sublingually. The physician will still order Nitroglycerin to be taken sublingually whenever there is chest pain. The patient's medication may have been expired being stored for 12 months now. Ativan or Lorazepam will not be given as this is a sedative and there is no indication for sedatives.

Serum electrolytes and chest xray will not be requested as these diagnostic examinations are not usually done in patients with stable angina.
7 0
3 years ago
How will you determine which strain is wild type and which strain is mutant? Can you justify your answers using molecular biolog
Levart [38]

Answer: The simplest way is to determine if a strain is mutant is observing morphology, growth rate, double time, etc but it is accurate if you can prove if the strain is deficient in one aminoacid or can't metabolize lactose, etc.

Explanation: A wildtype strain functions normally, for example, can metabolize as a carbon source, glucose, lactose and other sugars, can synthesize all the aminoacids requered for protein synthesis, etc. If a strain suffers a mutation and it is inheritable, the strain become a mutant. Since several mutations can be silent ones, only those that interfere with a process, can be assesed easyly.

For example, if you have several strains and put them in a lactose medium, but some of them cannot growth means that are lactose mutants. Those strains could carry a mutation in genes that encode lactose degrading enzymes or in regulatory genes of the lac operon, etc.

6 0
3 years ago
A metabolic pathway must provide the desired chemical (metabolite) at the rate required for cellular and tissue function. to acc
Galina-37 [17]

Answer;

"couples" energetically unfavorable reactions to ATP condensation in order to drive the reaction toward the required product.

Explanation;

-Metabolic pathways are designed to synthesize necessary cellular reagents as required for cellular and tissue function. To accomplish this, the reaction sequence includes both reactions that are essentially irreversible and reactions that are freely reversible (near equilibrium).

-In most cases, cells use a strategy called reaction coupling, in which an energetically favorable reaction (like ATP hydrolysis) is directly linked with an energetically unfavorable (endergonic) reaction.


8 0
3 years ago
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