genekelly_lover
New member
1
In his experiments with garden peas, Mendel demonstrated that
a. peas have seven pairs of chromosomes
b. each allele he stuidied was located on a different chromosome
c. the same principles of genetics apply to peas and to man
d. recessive alleles retain their fundamental natures even when unexpressed
e. hybridization is essential for propagation of peas to occur
#2
A male fuirt fly with red eyes and long wings was mated with a female with purple eyes and vestigal wings. All of the offspring in the F1 generation had red eyes and long wings. These F1 flies were testcrossed with purple eyed vestigial wingsed flies. Their offspring the F2 generation, appeared as indicated
125 red eyes, long wings
124 purple eyes, vestigial wings
18 purple eyes, long wings
16 red eyes, vestigial wings
How many map units apart are the genes for eyes color and wing shape?
a. 30
b.6
c. 12
d. 14
e. 50
What is the recombination frequency?
a. 125/283
b.18/283
c.34/283
d.34/249
e.125/249
In the F2 generation, the results are best explained by the fact that
a. the test cross with the F1 flies resulted in sterile offspring
b. These genes for eye color and wing shape do not pass through the F1 generation
c. these genes for eye color and wing shape are found on the same chromosome
d. corssing over decreases variability
e.the genes are sex linked
If in the F1 and F2 generations the same characteristics appeared in both males and females, it would be safe to assume that these traits for eye color and wing length
a. are sex linked
b. vary in dominance according to sex
c. are sex influenced characteristics
d. are autosomal characteristics
e. follow the Mendelian rule of independent assortment
In his experiments with garden peas, Mendel demonstrated that
a. peas have seven pairs of chromosomes
b. each allele he stuidied was located on a different chromosome
c. the same principles of genetics apply to peas and to man
d. recessive alleles retain their fundamental natures even when unexpressed
e. hybridization is essential for propagation of peas to occur
#2
A male fuirt fly with red eyes and long wings was mated with a female with purple eyes and vestigal wings. All of the offspring in the F1 generation had red eyes and long wings. These F1 flies were testcrossed with purple eyed vestigial wingsed flies. Their offspring the F2 generation, appeared as indicated
125 red eyes, long wings
124 purple eyes, vestigial wings
18 purple eyes, long wings
16 red eyes, vestigial wings
How many map units apart are the genes for eyes color and wing shape?
a. 30
b.6
c. 12
d. 14
e. 50
What is the recombination frequency?
a. 125/283
b.18/283
c.34/283
d.34/249
e.125/249
In the F2 generation, the results are best explained by the fact that
a. the test cross with the F1 flies resulted in sterile offspring
b. These genes for eye color and wing shape do not pass through the F1 generation
c. these genes for eye color and wing shape are found on the same chromosome
d. corssing over decreases variability
e.the genes are sex linked
If in the F1 and F2 generations the same characteristics appeared in both males and females, it would be safe to assume that these traits for eye color and wing length
a. are sex linked
b. vary in dominance according to sex
c. are sex influenced characteristics
d. are autosomal characteristics
e. follow the Mendelian rule of independent assortment