If we assume Aa is husband which is hetero-zygote and aa is wife which is normal then their cross will be Aa X aa and first generation will be Aa aa aa Aa.
Further explanation
Cross between Aa (heterozygote male) and aa (normal female)
Here is cross between a normal wife (aa) and a heterozygote husband (Aa)
Aa X aa
First generation
Aa Aa aa aa
Result
It is clearly seen that ration is 1:1 which mean half are heterozygote and half are normal offspring. As they already told about number of offspring which is 25, So according to 1:1 12.5 are normal and 12.5 are heterozygote.
Chi-square Test
It is test used to evaluate the observed the expected values.
Chi-square formula
χ2=∑(o-e)2/e
Here o= observed and e= expected
Calculation through chi-square value
It is given below
For heterozigous (14-12.5)2/12.5=0.18
For normal (11-12.5)2/12.5=0.18
By putting values of both heterozygous and recessive in chi-square formula
χ2=0.18+0.18=0.36
Answer details
Subject: Biology
Level: High school
Key words
- Cross between Aa (hetrozygote male) and aa (normal female)
- Chi-square Test
- Chi-square formula
- Calculation through chi-square value
Learn more to evaluate
brainly.com/question/12887489
brainly.com/question/10560288
brainly.com/question/12603071
Answer:
C. hunting and gathering existence.
Explanation:
Paleolithic period, also called Old Stone Age, of human development is characterized by the use of rudimentary chipped stone tools although at that time, humans also used wood and bone tools.
During the Paleolithic Age, hominins grouped together in small societies such as bands existed by gathering plants, fishing, and hunting or scavenging wild animals. Other organic commodities were adapted for use as tools, including leather and vegetable fibers; however were discontinued due to rapid decomposition.
Carbon is listed twice my dude :)