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dmitriy555 [2]
3 years ago
14

Describe the birth process. Gross...

Biology
2 answers:
Shtirlitz [24]3 years ago
6 0

1. First Stage: Dilation and Effacement of the Cervix

a. early phase

b. active phase

c. transition phase

2. Second Stage: Pushing and Birth

3. Third Stage: Delivery of the Placenta

Pachacha [2.7K]3 years ago
6 0

The process of labor and birth is divided into three stages:

The first stage begins when you start having contractions that cause progressive changes in your cervix and ends when your cervix is fully dilated. This stage is divided into two phases:

<span><span>Early labor: Your cervix gradually effaces (thins out) and dilates (opens).</span><span>Active labor: Your cervix begins to dilate more rapidly, and contractions are longer, stronger, and closer together. People often refer to the last part of active labor as transition.</span></span>

The second stage of labor begins when you're fully dilated and ends with the birth of your baby. This is sometimes referred to as the "pushing" stage.

The third stage begins right after the birth of your baby and ends with the delivery of the placenta.


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Meteorites formed a long time ago in the early solar system.<br> True or False
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In beans the pod texture and growth form genes are located on different chromosomes. There are two varieties of beans in a farme
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Answer:

a. Genotype in F1 - TtBb

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b. Proportion of F2 that are heterozygous for bush-type growth form = 5/8

c. Proportion of the F2 with tender pods =  1/4

d. Proportion of F2 that are heterozygous for growth form and have tender     pods = 1/8

Explanation:

Since the two traits are located on different chromosomes, they will independently assort during gametes formation. T is dominant over t and B is dominant over b.

Two true-breeding varieties were crossed at the beginning of the program:

TTBB   x   ttbb

All F1 plants will have the genotype TtBb with tough pods and bush-type growth form.

Advancing the cross to F2:

TtBb   x   TtBb

Progeny

1 TTBB   -   tough pods, bush-type

2 TTBb     -  tough pods, bush-type

2 TtBB    -   tough pods, bush-type

4 TtBb     -   tough pods, bush-type

1 TTbb     -    tough pods, climbing-type

2 Ttbb     -    tough pods, climbing-type

1 ttBB       -    tender pods, bush-type

2 ttBb     -      tender pods, bush-type

1 ttbb      -      tender pods, climbing-type

<em>Proportion of F2 that are heterozygous for bush-type growth form = 10/16 = 5/8</em>

<em>Proportion of the F2 with tender pods = 4/16 = 1/4</em>

<em>Proportion of F2 that are heterozygous for growth form and have tender pods = 2/16 = 1/8</em>

7 0
3 years ago
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