Monday, March 23, 2009

Biology #19 - Due 3/29

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

59 comments:

sofia said...

1)A(Ty, ty)
2)D(RR,Rr, and rr)
3)C(50%)
4)A(4)

SharonShaoulian said...

1. A
2. D
3. C
4. A

:]

Audrey Bruscia Period 2 said...

1. A
2. D
3. C
4. A

Anonymous said...

1. A
2. D
3. C
4. A

Anonymous said...

1a
2d
3c
4a

Anonymous said...

laura coria p.2
sorry

Anonymous said...

1.a
2.d
3.C
4.A

Anonymous said...

1.A
2.D
3.C
4.A

Anonymous said...

1) A
2) D
3) C
4) A

Kamkam said...

The answers are:
1) A
2) D
3) C
4) A

Anonymous said...

1. A: Ty, ty
2. D: RR, Rr, rr only
3. C: 50%
4. A: 4

Anonymous said...

1.
A Ty, ty


2.
D RR, Rr, and rr only

3.
C 50%


4.
A 4

Anonymous said...

1. A- Ty, ty
2. D- RR, Rr, and rr only
3. C- 50%
4. A- 4

Anonymous said...

1. A
2. D
3. C
4. A

Anonymous said...

A- Ty, ty
D- RR, Rr, and rr only
C- 50%
A-4


Period 1

Anonymous said...

1.a
2.d
3.C
4.A

Anonymous said...

1. A [Ty,ty]
2. D [RR,Rr,rr only!]
3. C [50%]
4. A [4]

Anonymous said...

1)A
2)D
3)C
4)A

Anonymous said...

Paisley Muller p.1

1.a
2.d
3.c
4.a

Anonymous said...

1. a
2. d
3. c
4. a


stephanie verheyen
period one

Anonymous said...

1. A
2. D
3. C
4. A

Anonymous said...

1 A
2 D
3 C
4 A

Anonymous said...

1) A

2) D

3) C

4) A

Anonymous said...

A
D
C
A

Anonymous said...

1) A
2) D
3) C
4) A

Anonymous said...

1. A

2. D

3. C

4. A

Anonymous said...

1) A
2) D
3) C
4) A

Anonymous said...

1)A(Ty,ty) 2)D(RR,Rr) 3)C(50%) 4)A(4)

Anonymous said...

1. A
2. D
3. C
4. A

Ali Hayes Per 2 said...

1.A
2.D
3.C
4.A

Blake Davis said...

1. A
2. D
3. C
4. A

Anonymous said...

1. A
2. D
3. C
4. A

Patrick Conway, Period 1

Elaine Wilson per. 2 said...

1.)A
2.)D
3.)C
4.)A

Charlotte Skjonsby said...

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.

Anonymous said...

Erika Richards period 2
1)a
2)d
3)c
4)a

Jessica P.2 said...

1.)A
2.)D
3.)C
4.)A

Jack Robinson said...

1) A
2) D
3) C
4) A

Jack Robinson

Mario Gonzalez(per.2) said...

the four answers are:
1)A(Ty,ty)
2)D(RR,Rr,rr)
3)C(50%)
4)(4)

Audrey Azevedo P.2 said...

1) A

2) D

3) C

4) A

courtney mcintosh said...

1 A
2 D
3 C
4 A

Felix Villavicencio P.2 said...

1. A
2. D
3. C
4. A

Jake Arnett Per. 2 said...

A
D
C
A

Mr. Troy Arnold said...

a
d
c
a

Unknown said...

1. A
2. D
3. C
4. A

Cameron Cuevas said...

1. A
2. D
3. C
4. A

Cameron per. 2

Anonymous said...

1. A
2. D
3. C
4. A

Jack said...

1=A
2=D
3=C
4=A

Jack Hadley said...

1=a
2=d
3=c
4=a

Anonymous said...

This is Sophie leveque period 1.
1- a
2-d
3-c
4-a

Jorge Huizar Per. 2 said...

1)A
2)D
3)C
4)A

Ethan Fichtner P.1 said...

1) A




































































































































































2) D













































































































3) C























































































4) A













































*longest comment*

anonymouso said...

^^ (:

lizbeth vargas per.2 said...

1) A: Ty, ty

2) D: RR, Rr, rr

3) C: 50%

4) A: 4

Anonymous said...

Taylor Bower
Period 1

1. A
2. D
3. C
4. A

Matt Porteous said...

1. A
2. D
3. C
4. A

austin smith P2 said...

1 A
2 D
3 C
4 A
(:(:(:(:(:(:(

kent willett said...

1. A
2. D
3. C
4. A

Anonymous said...

1. A
2. D
3. C
4. A

Nicole Zielinski
Period 1

Anonymous said...

ramiro rodriguez
1)A
2)D
3)C
4)A