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3 years ago

Please help me please

Biology

1 answer:

baherus [9]3 years ago

6 0

Answer:

Please see the answer below

Explanation:

a. The roman numerals represent the various generations in the pedigree.

I represents first generation

II represents the second generation

b. The half shaded square and circle representing the parents means that both of them are carriers for the trait in question. Tay-Sachs disease is an autosomal recessive inheritance, assuming the trait is represented by the allele a, the gentoypes of the parents would be Aa and Aa respectively.

c. Still on the assumption that the disease is represented by the allele a. If offpsring II4 which happens to be free of the Tay-Sachs allele marries a person that also does not carry the Tay-Sachs disease gene, the cross will be as shown below.

AA x AA = AA, AA, AA, and AA.

All the children would be free from the Tay-Sach's allele. That is, they will be homozygous normal.

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3 years ago

Read 2 more answers

Help me with the question below

olga_2 [115]

Answer:

The flow/transfer of energy would be A) sound-electrical-sound

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2 years ago

Can any one help pls if u can’t see the picture pls zoom thank u

SashulF [63]

Answer:

suppose x and y are two divided

parts of 4500. then

x+y=4500 __ (1)

given

5% of x = 10% of y

100

10y

x=2y

2y+y=4500

3y=4500

y=1500

x+1500=4500

x=4500−1500

x=3000

hence the 4500 is been divided into

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3 years ago