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Mashcka [7]
3 years ago
7

In drosophila melanogaster, the common fruit fly, curved wings "I" and purple eyes "r" are two linked recessive genes found on c

hromosomes 2. The dominant wild type alleles for those genes are long wings"L" and red eyes "R"
a)describe the expected ratio of offspring in the f2 generation of these genes were located on different chromosomes
b)the results in the f2 generation of these flies were: 40 long winged, red eyes; 40 curved winged, red eyes; 10 long winged, purple eyes, and 10 curved winged, red eyed. how many map units apart are the genes for curved wings and purple eye color?
Biology
2 answers:
Harlamova29_29 [7]3 years ago
7 0

Answer:

40 \times 60 \\  = 240

<h3><u>2</u><u>4</u><u>0</u><u> </u><u>is</u> the answer</h3>
Roman55 [17]3 years ago
4 0

Answer:

the other person is right, he had messed up before saying that 60 x 40 = 100, but 60 + 40 = 100. Then I had told him that his answer was wrong and that he should put the answer as 240 instead since 60 x 40 = 240 and not 100.

Explanation:

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Verdadero o falso mediante el genotipo podemos determinar si existen dominancia en una característica
Murljashka [212]

Answer:

Verdadero

Explanation:

Sabemos que los caracteres dependen de los genes. Y los genes pueden presentarse en forma de alelos dominantes, o alelos recesivos. La expresión de los alelos recesivos son enmascarados o escondidos por el alelo dominante. Es decir, que si ambos alelos se encuentran juntos en un heterocigota, solo el alelo dominante se expresará.

Entonces el alelo dominante expresa la característica que resulta dominante, mientras que el alelo recesivo expresa la característica recesiva.

Genotipo:

  • Homocigota dominante ----> Expresa caracter dominante (Solo el alelo dominante esta presente)
  • Heterocigota -------------------> Expresa el caracter dominante (Ambos alelos estan presentes, pero el dominante es quien se expresa)
  • Homocigota recesivo --------> Expresa el caracter recesivo (solo alelos recesivos estan presentes)

Por ejemplo, si tenemos dos fenotipos rojo y amarillo, y sabemos que el color esta codificado por un gen dialelico llamado M. También supongamos que no sabemos qué alelo expresa qué color. Teniendo solo estos datos, no podemos decir si el rojo es el color dominante o si el amarillo lo es.

Sin embargo, si tenemos los siguientes genotipos acompañando esta información:

  • MM--> Amarillo
  • Mm--> Amarillo
  • mm --> Rojo

Recién ahora podemos deducir que el caracter dominante es el amarillo.

8 0
3 years ago
The job of the circulatory system is to __________. transport digestive wastes store blood and food transport blood take in and
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Transport the blood.........
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Answer:

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The migration can be radial or tangential.

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