We all learned about nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. 

The planet Pluto was demoted to “dwarf planet” status in 2006.

But in the early 1990s, many scientists remained skeptical that such planets existed, or if they did exist, that it would be possible to see and study them.

Since the first exoplanet discovery, astronomers have discovered more than 700 other. Akmost everyone of them you can see with a ground-based telescopes. All of them are probably small and Earth-sized.fe.

No two worlds seem to be the same, and they challenge what we know about solar systems. “All these systems are almost like a children’s game,” Seager says, “where anything goes — any planet you can imagine — in terms of mass and distance from its star. It’s really incredible.”

Gattaca

4.I don't think that Jeremy is mentally ill. He is maybe differnt but he is not mentally ill. I think he has depressions, and that's also the reason why Ithink he killed himself.

17.Clooning a person should be forbidden in my opinion. If a person needs some organs (for example: Liver, heat, lung, pancreas) then not otherwise yes. Cloning of animals should stay maybe but cloning of people should be forbidden forever.

Lab-Make the Right Call

Problem: How can you predict the possible results of genetic crosses?


Data Table 1

Data Table 2

Data Table 3

Analyze and Conclude 


1. Make a Punnet square for each of the crosses you modeled in Part 1, Part 2, and Part 3.

2. When you cross two homozygous parents, BB and bb, you get only one kind of offspring, Bb. The results agree with the marble model 100%.


3. 50 % of the offspring would be heterozygous and 50% would be homozygous if a homozygous and heterozygous are crossed. They don't agree with the marble model because in the marble model it shows 60% are homozygous and 40% are heterozygous.


4. There are three different kinds of offspring when two heterozyogous parents are crossed; BB 25%, bb 25% and Bb 50%. NO the results don't mach because in the model BB is 70% bB is 10% and bb is 20%.


5. The Punnett square is theoretical and shows perfect results. If you cross 100 times it would be more accurate than 10 times because there is more Data to calculate.


6. The Punnett square and the marble model have similarities and differences. The Punnett square and the marble model show the percentage of offspring.They both show which two parents were crossed. The Punnet square is easier to make and to see but it shows a theoretical outcome. The marble model takes longer but it shows real results. Both of these are useful in different situations depending on the needs of the researcher.