Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
2. Identify Patterns What trend is shown by the data?
![Analyzing Data
Gestational
Period
In placental mammals, the time from fertilization to birth is called the gestational period. The
table lists gestational periods and typical weights of several adult female mammals.
Species
Mouse
Rabbit
Goat
Gestation Time and Weight
Gestation
(days)
20
33
150
227
Chimpanzee
Human
Bison
Elephant (African)
270
640
Female
Weight (kg)
2. Identify Patterns What trend is shown by the data?
0.02
1
15
40
600
5000
1. Compare How does the gestational period of humans compare with that of the other
species listed in the table?
3. Ask Questions What questions could you ask, and then investigate, to help explain the
trend you identified?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc06b81a7-6e71-44be-8828-028903e42575%2Fe0113bc1-51d9-4b80-9eb0-81be4a6ba745%2Fhot02z6_processed.jpeg&w=3840&q=75)
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