Answer:
1/4 or 25%
Explanation:
Let us assume that the fruit color trait in the tomato is represented by R and r. The dominant color red would be represented by R while the recessive color yellow would r.
If a true-breeding red fruit tomato (RR) is crossed with a true-breeding yellow fruit tomato (rr), the F1 would be thus:
RR x rr
Rr Rr Rr Rr
Since R is dominant over r, all the F1 offspring would produce red fruits with the genotype Rr.
At F2:
Rr x Rr
RR Rr Rr rr
RR and Rr = red
rr = yellow
<em>Hence, the proportion of the F2 offspring expected to be yellow would be </em><em>1/4</em><em> or</em><em> 25%</em><em>.</em>
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Answer:
Molecules are two or more atoms chemically joined together
Compounds are two or more different elements joined together chemically(heteronuclear or homonuclear).
Explanation:
All compounds are molecules, but not all molecules are compounds. a molecule can be made of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule, all compounds are made up of two or more different types of atoms.One that is used a lot is water(H2o)
I HOPE THIS HELPS!!!!
The size of our brains has increased since we became tools users.
Explanation:
Researches have shown that since we became tool users, the size of our brain has increase significantly. This is an evolutionary footprint in us. Our brain size has not always been the same.
- The earliest humans use very crude tools in their hunting.
- Modern man is full of technology and advanced tools.
- To get here, the brain has constantly been changing over time to accommodate more innovative faculties.
From this excerpt, one can deduce that the commentary is trying to prove Susan wrong by linking how the body part of humans have changed to adapt to the environment.
The second option presents the most logical explanation for this.
learn more:
Fossils brainly.com/question/12790206
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Answer:
The three domains are the Archaea, the Bacteria, and the Eukarya.
Explanation:
Prokaryotic organisms belong either to the domain Archaea or the domain Bacteria; organisms with eukaryotic cells belong to the domain Eukarya.
Lateralization - an idea that states the the two halves of the brain have different functions. Some functions are more dominant r in one hemisphere than the other.
