1. Blood type in humans is controlled by ____ alleles with an additional Rh factor that determines _________ .

Question

one; color

two; positive or negative charge

three; shape of blood cells
four; phenotype

2. If two people are heterozygous for cystic fibrosis, what are the chances that their children will have the disease?
25% chance

50% chance

60% chance

none of the above

3. Of the following, which represents a homozygous recessive genotype?
TT

Tt

tt

TTT

4. Blood types in humans are an example of ______, while the outcome of pink flowers when red and white flowers are crossed is an example of ______.
complete dominance; polygenic inheritance
polygenic inheritance; incomplete dominance
sex-linked inheritance; multiple alleles
multiple alleles; incomplete dominance

5. In undisturbed areas, older rock layers lie ____ successively younger rock layers.

below

above

in between

on top of

6. Change in the hereditary features of a type of organism over time is ____.

growth

biogenesis

spontaneous generation

evolution

7. An allele carried on a Y chromosome will affect ______.
all of the female offspring
some of the male and female offspring
all of the male offspring
none of the offspring

8. Which of the follow lists the genetic parts from largest to smallest?
gene; DNA; allele; chromosome
chromosome; DNA; gene; allele
DNA; gene; chromosome; allele
allele; chromosome; DNA; gene

9. Which of the following accurately compares traits controlled by multiple alleles with those controlled by polygenetic dominance?

Polygenic inheritance is a group of genes acting together to produce a wide variety of phenotypes while multiple alleles traits produce more than three phenotypes of that trait.

Polygenic inheritance and multiple allele traits work the same way.

Polygenic inheritance occurs when a group of genes act together to produce one phenotype while multiple alleles produce three or more phenotypes.

Polygenic inheritance traits are produced by a group of genes acting together, while multiple alleles produce a wide variety of phenotypes.

10. Through _______ _______, tomatoes can now be picked and transported great distances before they ripen.

11. Through genetic engineering, scientists are experimenting with methods to change the arrangement of ______ in a gene.

12. Punctuated equilibrium occurs over a relatively ______ period of time, usually as a result of a ________.

13. _________ is a continuous series of mutations and variations over time that results in a new species.
Follow 2 answers

1.B
2.A
3.C
4.D
5.A
6.D
7.C
8.B
9.A
10.selective breeding
11.DNA
12.short; genetic mutation
13.Gradualism

Answer 1

1. DK, but guess at D
2. Agree
3. Agree
4. agree
5. agree
6. agree
7. agree
8. agree
DK the rest.