Answer the following statements true (T) or false (F)
1. For the traits Mendel studied in pea plants, each trait, or phenotype, is expressed in only the dominant or recessive form, depending on the genotype.
2. In the ABO blood type system, there are six possible genotypes, but only two possible phenotypes.
3. Environmental conditions affect single-gene traits rarely, but affect polygenic traits often.
4. When the frequencies of all the phenotypes associated with a polygenic trait are plotted on a graph, they form a characteristic bell-shaped curve.
5. Gregor Mendel is sometimes referred to as the "father of genetics" because he influenced the science of genetics more than anyone else.
1.TRUE
2.FALSE
3.FALSE
4.TRUE
5.TRUE
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Risks of genetic engineering include all of the following except ________
a. accidental transformation of non-target organisms b. creation of new pathogens c. GMOs escaping into the environment d. creation of toxic DNA
It is clear that certain traits in early primate evolution played a key role in leading to the survival and further development of members of the order. Explain how traits such as manual dexterity, upright posture, acute vision, larger brain, extended infant care, and modified teeth laid the groundwork for the evolution of humans
What will be an ideal response?
Which definition of evolution would have been most foreign to Charles Darwin during his lifetime?
A) change in gene frequency in gene pools B) descent with modification C) the gradual change of a population?s heritable traits over generations D) populations becoming better adapted to their environments over the course of generations E) the appearance of new varieties and new species with the passage of time
The sample standard deviation is related to the sample variance through what functional form?
A. Logarithm B. Exponential C. Square root D. Linear