![subject](/tpl/images/cats/biologiya.png)
Biology, 23.03.2020 21:09 monayemcnett11
For natural selection to cause evolution, it must select for or against one or more of the genotypes for a trait. In the simple case of a trait that is determined by a single gene with two alleles, there are five combinations of genotypes that nature can select:
1. either homozygote (AA or aa but not both)
2. both homozygotes (AA and aa)
3. either homozygote and the heterozygote (AA and Aa or aa and Aa)
4. the heterozygote (Aa)
5. all alleles (AA, Aa, and aa).
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 00:40
World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 03:30
Someone me with this: a mineral' is determined by its actomic structure.
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 14:30
Asegment id dna that is artificially created from two or more organism through use of dna enzymes in a laboratory is called a segment of dna that is artificially created from two or more organisms through use of dna enzymes in a laboratory is called
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 15:30
The most effective way to provide children with safety messages is to
Answers: 3
You know the right answer?
For natural selection to cause evolution, it must select for or against one or more of the genotypes...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.06.2020 06:57
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.06.2020 06:57
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.06.2020 06:57
![question](/tpl/images/cats/mat.png)
Mathematics, 05.06.2020 06:57
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.06.2020 06:57
![question](/tpl/images/cats/es.png)
Spanish, 05.06.2020 06:57
![question](/tpl/images/cats/istoriya.png)
History, 05.06.2020 06:57
![question](/tpl/images/cats/es.png)
Spanish, 05.06.2020 06:57
![question](/tpl/images/cats/fr.png)
French, 05.06.2020 06:57
![question](/tpl/images/cats/mat.png)
Mathematics, 05.06.2020 06:57
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.06.2020 06:57