1. If a corn plant has a genotype of Ttyy,
what are the possible genetic combinations that could be present in a single
grain of pollen from this plant?
A Ty, ty
B TY, ty
C TY, Ty, ty
D Ty, ty, tY, TY
2. In fruit flies, the gene for red eyes (R) is
dominant and the gene for sepia eyes (r) is
recessive. What are the possible combinations of genes in the offspring of two red-eyed heterozygous flies (Rr)?
A RR only
B rr only
C Rr and rr only
D RR, Rr, and rr only
3. In certain breeds of dogs, deafness is due
to a recessive allele (d) of a particular gene, and normal hearing is due to its dominant allele (D). What percentage of the offspring of a normal heterozygous (Dd) dog and a deaf dog (dd) would be expected to have normal hearing?
A 0%
B 25%
C 50%
D 100%
4. 5' ATCAGCGCTGGC 3'
The above sequence of DNA is part of a gene. How many amino acids are coded for
by this segment?
A 4
B 8
C 12
D 20
Monday, March 23, 2009
Biology #19 - Due 3/29
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59 comments:
1)A(Ty, ty)
2)D(RR,Rr, and rr)
3)C(50%)
4)A(4)
1. A
2. D
3. C
4. A
:]
1. A
2. D
3. C
4. A
1. A
2. D
3. C
4. A
1a
2d
3c
4a
laura coria p.2
sorry
1.a
2.d
3.C
4.A
1.A
2.D
3.C
4.A
1) A
2) D
3) C
4) A
The answers are:
1) A
2) D
3) C
4) A
1. A: Ty, ty
2. D: RR, Rr, rr only
3. C: 50%
4. A: 4
1.
A Ty, ty
2.
D RR, Rr, and rr only
3.
C 50%
4.
A 4
1. A- Ty, ty
2. D- RR, Rr, and rr only
3. C- 50%
4. A- 4
1. A
2. D
3. C
4. A
A- Ty, ty
D- RR, Rr, and rr only
C- 50%
A-4
Period 1
1.a
2.d
3.C
4.A
1. A [Ty,ty]
2. D [RR,Rr,rr only!]
3. C [50%]
4. A [4]
1)A
2)D
3)C
4)A
Paisley Muller p.1
1.a
2.d
3.c
4.a
1. a
2. d
3. c
4. a
stephanie verheyen
period one
1. A
2. D
3. C
4. A
1 A
2 D
3 C
4 A
1) A
2) D
3) C
4) A
A
D
C
A
1) A
2) D
3) C
4) A
1. A
2. D
3. C
4. A
1) A
2) D
3) C
4) A
1)A(Ty,ty) 2)D(RR,Rr) 3)C(50%) 4)A(4)
1. A
2. D
3. C
4. A
1.A
2.D
3.C
4.A
1. A
2. D
3. C
4. A
1. A
2. D
3. C
4. A
Patrick Conway, Period 1
1.)A
2.)D
3.)C
4.)A
Hey Mr. Burns...
1. A: Ty, and ty are the only possible genotypes..
2.C: Rr, and rr because of the 25% 75% ratio...
3.C: if you do a punnett square you get 50%..
4.A: 4 because a codon is 3 bases, and those together are only 4.
Erika Richards period 2
1)a
2)d
3)c
4)a
1.)A
2.)D
3.)C
4.)A
1) A
2) D
3) C
4) A
Jack Robinson
the four answers are:
1)A(Ty,ty)
2)D(RR,Rr,rr)
3)C(50%)
4)(4)
1) A
2) D
3) C
4) A
1 A
2 D
3 C
4 A
1. A
2. D
3. C
4. A
A
D
C
A
a
d
c
a
1. A
2. D
3. C
4. A
1. A
2. D
3. C
4. A
Cameron per. 2
1. A
2. D
3. C
4. A
1=A
2=D
3=C
4=A
1=a
2=d
3=c
4=a
This is Sophie leveque period 1.
1- a
2-d
3-c
4-a
1)A
2)D
3)C
4)A
1) A
2) D
3) C
4) A
*longest comment*
^^ (:
1) A: Ty, ty
2) D: RR, Rr, rr
3) C: 50%
4) A: 4
Taylor Bower
Period 1
1. A
2. D
3. C
4. A
1. A
2. D
3. C
4. A
1 A
2 D
3 C
4 A
(:(:(:(:(:(:(
1. A
2. D
3. C
4. A
1. A
2. D
3. C
4. A
Nicole Zielinski
Period 1
ramiro rodriguez
1)A
2)D
3)C
4)A
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