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tankabanditka [31]
3 years ago
15

El origen de la vida o la aparición de los primeros seres vivos sobre la Tierra y la biodiversidad del

Biology
1 answer:
kumpel [21]3 years ago
3 0
What is going on bro, I am sorry I don’t understand Spanish
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A cross between two linked genes was done in coupling configuration and in repulsion. What is expected for the recombination fre
iren [92.7K]

A cross between two linked genes was done in coupling configuration and in repulsion. In coupling, the recombination frequency is greater than 1/16 and in repulsion, the recombination frequency is less than 1/16

If the cross between two linked genes is in coupling, then the recombination frequency is greater than 1/16 having the genotype aabb and phenotype ab.

If the cross between two linked genes is in repulsion, then the recombination frequency is less than 1/16 having the genotype aabb and phenotype ab.

Coupling is the gamete entered having genes from identical parents having same inheritance.

Repulsion is the gamete entered from different parents having separate inheritance.

Genes in coupling configuration on a homologous chromosome have two wild alleles and two mutant alleles on the other homologous chromosome.

Genes in repulsion configuration have a wild allele on one gene and the second gene on other homologous chromosome having a mutant allele.

Learn more about Homologous chromosome here, brainly.com/question/27258467

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8 0
2 years ago
What specifically makes a process inorganic
slega [8]
Different chemicals such as steroids, antibiotics, and aspartame just to name a few
8 0
3 years ago
This method can be used to sterilize a liquid media without
Lena [83]

Answer:

a. autoclaving

Explanation:

The autoclave is a device designed to sterilize contaminated material and media, in order to reliably eliminate microorganisms that would otherwise be present in objects that are used in diagnostic, treatment or research activities in hospitals and laboratories health institutions . This sterilization is usually carried out with moist heat in devices called autoclaves. It is also a widely used equipment in the food industries and in the pharmaceutical industry.

For sterilization of culture media to be effective, the selected temperature and time must be achieved throughout the liquid. Since the transmission of heat in the liquid of the vessels is carried out from the outside inwards, it is evident that the efficiency of the process will depend on the volume of liquid.

In general, it is not convenient to sterilize large and small containers together. In any case, the temperature and time will be selected according to the volume of the containers.

Hermetically sealed containers must be introduced into the autoclave without completely closing the cap, to facilitate the entry of steam during the process. When emptying the autoclave after sterilization we will proceed to completely close these containers.

Empty containers require a longer sterilization time than containers with liquid inside.

The autoclaves are available in many sizes, the small ones are desktop and the larger ones are complex equipment that require a large amount of pre-installation for their operation. In order to measure its size, the volume of the sterilization chamber is usually taken as a reference, which is measured in cubic centimeters or liters. Depending on their operation they are semi-automatic or automatic.

8 0
3 years ago
Scientist can determine the age of ancient objects by a method called radiocarbon dating. The bombardment of the upper atmospher
IRISSAK [1]

Answer:

3688.323years

Explanation:

Given-

Half life of 14C = 5730years

As we know -

A_{(t)} = A_0e^{kt}

Where

A_{(t)} = Mass of radioactive carbon after a time period "t"

A_0= initial mass of radioactive carbon

k =radioactive decay constant

t =time

First we will find the value of "k"

\frac{1}{2} = (1)*e^{k*5730}\\

On solving, we get -

e^{5730*k}= 0.5\\5730*k = ln(0.5)\\k = -0.000121

Now, when mass of 14C becomes 64% of the plant  material on earth today, then its age would be

A_{(t)} = A_0*e^{(-0.000121*t)}\\A_{(t)}= 0.64*A_0\\0.64*A_0 = A_0*e-^{(0.000121*t)}\\t = 3688.323years

6 0
3 years ago
Paisley wants to prepare a graph of the rate of growth of a lentil seeding . Which Factors would be the independent and dependen
Rama09 [41]
A.The height of the lentil seedling would be an independent variable and the length of the leaves the dependent variable. B.The height of the lentil seedling would be an independent variable and the time passed would be the dependent variable. C.The time passed would be an independent variable and the height of the lentil seedling would be the dependent variable.
6 0
3 years ago
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