question archive 1-A large number of genetically identical tomato plants are grown in a greenhouse
1-A large number of genetically identical tomato plants are grown in a greenhouse
Subject:BiologyPrice: Bought3
1-A large number of genetically identical tomato plants are grown in a greenhouse. The mean height in this plant population is 84 cm, and the standard deviation is 2.5 cm. The variation in height within this population is most likely due to:
Select one:
a correlation between genotype nd environment.
the difference between the greenhouse population mean and the whole population mean.
differences in the plants' microenvironment.
random genetic differences within the population.
the use of a nonrepresentative sample to compute the mean.
2-In the following pedigree, the shaded symbols represent a rare X-linked recessive disease of the blood. The propositus (arrowed) has 45 chromosomes and is sterile. Propose a single mechanism to account for both the sterility and the blood disease in this female.
Select one:
The woman's father was a carrier for the disease on his X chromosome
The woman is likely demonstrating a case of Turner syndrome
The woman is likely demonstrating a case of Down syndrome
The woman's mother's eggs likely experienced a nondisjunction event
None of the above are possible mechanisms
