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Genetics And Punnett Squares Quiz (4)

10 Questions  I  By Raleighegypt
Its about Punnett squares and DNA genetic genes. How DNA works and a easier way to determine the percentage of genes.

  
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Question Excerpt

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1.  A heterozygous tall (Tt) plant is crossed at with a short plant (tt). The probability that offspring plants will be tall is...
A.
B.
C.
D.
2.  Organisms that have two different alleles for a particular trait are said to be...
A.
B.
C.
D.
3.  A cross of a black chicken (BB) with a white chicken (WW) produce all speckled offspring (BW). This type of inheritance is known as ..
A.
B.
C.
D.
4.  According to the dihybrid cross below, what proportion of peas would be green and smooth?
A.
B.
C.
D.
5.   What is the probability that a hamster will have black, fine hair?
A.
B.
C.
D.
6.  When a plant breeder crossed two red roses, 78% of the offspring had red flowers and 22% had white flowers. According to these results, the allele for red flowers is most likely:
A.
B.
C.
D.
7.  Tracey has three brothers. One of Tracey's brothers has sickle-cell anemia, a disease caused by a recessive allele. She, her parents, and the other children do not have it. If Tracey's parents have another child, what is the chance that the child will have sickle-cell anemia?
A.
B.
C.
D.
8.  In pepper plants, the allele for hot flavor (H) is dominant to the allele for mild flavor(h).  A farmer crosses a homozygous dominant plant with a recessive (mild) plant. What percentage of the offspring from this cross will have hot flavor?
A.
B.
C.
D.
9.  Which four items are living things with D.N.A.?
A.
B.
C.
D.
10.  What are the four main bases of D.N.A.?
A.
B.
C.
D.
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