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2 years ago

The skin layer just beneath the stratum basale is the __________ layer.

Biology

1 answer:

Lubov Fominskaja [6]2 years ago

6 0

<span>The skin layer just beneath the stratum basale is the </span>stratum<span> corneum of the epidermis.</span>

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A phenotypic ratio for a dihybrid cross is predicted to be 9:3:3:1. The experimental values are:

Maslowich

Two traits that we are examining are the color (purple/white) and the smoothness.
In our sample, we have 135 individuals ( 75 +28+24+8= 135).

Since we know that expected ratio of a dihybrid cross, is <span>9:3:3:1 we can calculate what is the expected values of each phenotype is.

So, for the white wrinkled phenotype, we expect that there will be one-sixteenth of the whole sample ( there are 16 parts of the whole sample 9+3+3+1=16).
So, we multiply the whole sample- 135 with one-sixteenth (or </span>0.0625) and get 8,4375.
When you calculate the values for all phenotypes you get results shown in the attached excel table.
When you have your expected and experimental values you compare them with a chi-square test. (The test determines if the difference between the expected and experimental results is statistically significant).

4 0

2 years ago

Read 2 more answers

Why does the potential energy and the kinetic energy change when the skateboarder is at the top or the bottom of the hill why do

Brut [27]

Answer:

Potential energy is gaining all the way to the top of the hill due to the increase of height (gravitational pull) on the skateboarder. At the top of the hill potential energy will reach its highest point. Then going down kinetic energy increases as potential energy decreases.

Explanation:

7 0

2 years ago

Read 2 more answers

Comparative embryology helped clarify the relationships among major groups of animals while the bilaterians

tresset_1 [31]

<h2>Coelomates & Pseudocoelomates </h2>

Explanation:

Coelomates: Animals that have a body that incorporates voids are known as coelomates, they have a total body structure, and their bodies are ensured by coelom which goes about as a body skeleton and spares all the interior organs from outer pressure. The coelom is shaped at the stage known as gastrula, after various procedures which incorporate different capacities the mesoderm is isolated into two sections and coelom begins existing between them. The primary layer is near the body itself called endoderm while the other layer is at the external side known as ectoderm.
Pseudocoelomates: Animals that don't have an appropriate body hole are known as pseudocoelomates. This is a direct result of the explanation that they have pseudo coelom which is available between the ectoderm and endoderm and lies outside the mesoderm. They are likewise dissipated and present at more than one spots, thusly, have a structure which doesn't appear to be like different species. In spite of the fact that it is a body cavity and capacities appropriately but since of their temperament, the liquid isn't line appropriately however fills the assemblage of creatures, in light of this the organs are put near one another in a dispersed way and thusly doesn't permit the body to shape a legitimate skeleton.

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2 years ago

Drag two black mice into the Parent 1 and Parent 2 boxes. Click Breed to view the five offspring of these parents. What do the o

Irina-Kira [14]

Answer:

The correct answer is - All offsprings are black-furred mice.

Explanation:

In this case, the parent mice are black and a cross between these mice produces offspring one allele from both parents. Here, black fur is dominant over white fur.

All the babies are with dark fur colors, no whites as black is a dominant color, so it produces black due to cross between two true breeds.

B B

B BB BB

4 0

2 years ago

Explain the steps to complete a Punnett Square (monohybrid cross). *

KengaRu [80]

Answer:

Determine the parental genotypes. You can use any letter you like but select one that has a clearly different lower case, for example: Aa, Bb, Dd.

Split the alleles for each parent and add them into your Punnett square around the edges.

Work out the new possible genetic combinations inside the Punnett square.

Explanation:

5 0

3 years ago