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jenyasd209 [6]
3 years ago
6

Arteries and veins are two important parts of the circulatory system. What is the relationship between arteries and veins?

Biology
1 answer:
Musya8 [376]3 years ago
3 0

Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.

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Complete el cuadro de Punnett que muestra un cruce entre un hombre que es heterocigoto para el tipo de sangre B y una mujer que
mylen [45]

Answer:

F1) 1/4 = 25% de la porgenie será AB, IAIB

     1/4 = 25% de la progenie será heterocigota para el tipo A, IAi

     1/4 = 25% de la progenie será heterocigota para el gruo B, IBi

     1/4 = 25% de la progenie será homocigota recesiva, ii

Explanation:

  • El gen I determina el tipo de sangre de una persona. Es un gen dialelico que muestra alelo dominante I y recesivo I.
  • En personas de tipo A, los alelos son IA dominante, i recesivo.
  • En personas de tipo B, los alelos son IB dominante, i recesivo
  • IA e IB son codomiantes entre si, lo que signofica que hay un tercer fenotypo IAIB, expresando ambos tipos de sangre juntos.  
  • El alelo i es recesivo siempre.

Genotipo A:

  • IAIA, Homocigota dominante
  • IAi, Heterocigota
  • ii homocigota recesivo

Genotipo B:

  • IBIB, Homocigota dominante
  • IBi, Heterocigota
  • ii homocigota recesivo

Genotipo AB:

  • IAIB, Homocigota dominante

Cruza: un hombre que es heterocigoto para el tipo de sangre B con una    

           mujer que es heterocigota para el tipo de sangre A

Parentales) IBi    x    IAi

Gametos)  IB    i      IA    i

Cuadro de Punnett)

                      IB          i

             IA    IAIB       IAi

               i      IBi          ii

F1) 1/4 = 25% de la porgenie será AB, IAIB

     1/4 = 25% de la progenie será heterocigota para el tipo A, IAi

     1/4 = 25% de la progenie será heterocigota para el gruo B, IBi

     1/4 = 25% de la progenie será homocigota recesiva, ii

7 0
3 years ago
The job of the cell membrane is to
klemol [59]

Answer:the job of that is to let nutrients or good things inside and keep the unwanted out. To make sure what the cell needs to survive and reproduce

Explanation:hope this helps

6 0
3 years ago
Please help? will give brainliest if right
almond37 [142]
Number C.) a pioneer species will change into a different species in the climax community
5 0
3 years ago
Much like a cell, a virus is able to
Pie
Hey there!

<span>Much like a cell, a virus is able to

Answer: </span>
<span> change over time.

Hope this helps
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4 0
4 years ago
Read 2 more answers
In chickens, FF produces extreme frizzle (very brittle and curly feathers), Ff has mild frizzle and ff has normal feathers. An e
Neko [114]

Answer:

if pure FF and pure ff marry, phenotypic ratio is all Ff or half-half

mild-ruffled feathers for all the chicks

Explanation:

makes sense

7 0
3 years ago
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