It depends on the alleles inherited from the parents. If dominant and recessive allele were inherited from each parent you have 1 offspring that has 2 dominant alleles, 1 offspring that has 2 recessive alleles and 2 offspring that has both a dominant and recessive allele. The example below shows (T) as dominant allele and (t) as the recessive allele. The bold letters represent the parent alleles that the parents passed on to offspring.
T t
T TT Tt
t Tt tt
Answer:
1. C. they could not write on ordinary paper.
2. A. the Biro brothers‟ original patent was out of date
3. D. 1945
Explanation:
According to the excerpt from "The history of the biro", the development of the biro is narrated as Lewis Watermark secured the patent for the fountain pen in 1884. However, the problem with the ballpoint pens invented between 1888 and 1935 was that they couldn't write on ordinary paper ait tore through paper.
In June 1945, Milton Reynolds stumbled on the Biro pen in Argentina where he found out that the Biro brother's patent had expired when he sent some pens to Chicago.
The first biro factory began production on October 6, 1945.
Noun, like a person place or thing.
So, in the 1st one you would list 'Radio, Inventors, and Television'
Hope I helped :)
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