HomeworkLib
Question

White (w) is an x-linked recessive and tinman (tn) is an autosomal recessive mutation. What proportion...

White (w) is an x-linked recessive and tinman (tn) is an autosomal recessive mutation. What proportion of white, tinman females (relative to total population) is expected in the F2 starting with a true breeding white female which is wild type for tinman mating with a true breeding male mutant only for tinman.

please do step by step I am so confused. I know the answer is 1/16 but don’t know how??

science   biology   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Answer:

Female (XwXw; TnTn) x (XWY; tntn) Male ----Parents

F1:

XW tn

Y tn

Xw Tn

XWXw; Tntn (wild color & wildtype tinman—daughter)

XwY; Tntn (white color & wildtype tinman—son)

XWXw; Tntn (F1 female) x (F1 male) XwY; Tntn ---Parents

XWXw x XwY = XWXw (1/4). XWY (1/4). XwXw (1/4) & XwY (1/4)

Tntn x Tntn = TnTn (1/4), Tntn (1/2) & tntn (1/4)

Proportion of white, tinman females = XwXw; tntn = ¼ * ¼ = 1/16

0 0
Add a comment
Know the answer?
Add Answer to:
White (w) is an x-linked recessive and tinman (tn) is an autosomal recessive mutation. What proportion...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • scalloped (sd) is an X-linked recessive and ebony (e) is an autosomal recessive mutation. What proportion...

    scalloped (sd) is an X-linked recessive and ebony (e) is an autosomal recessive mutation. What proportion of scalloped, ebony females (relative to whole population) is expected in the F2 starting with a true breeding scalloped female which is wild type for ebony mating with a true breeding male mutant only for ebony. ANSWER: 1/16 PLEASE PROVIDE A WELL EXPLAINED ANSWER PLEASE!

  • Please explain in details: White eyes is an X-linked recessive mutation and curly wings is an...

    Please explain in details: White eyes is an X-linked recessive mutation and curly wings is an autosomal dominant mutation in Drosophila. What proportion of red eyed, curly winged females is expected in the F2 starting with a true breeding white eyed, non-curly female mating with a true breeding red eyed curly male. a. 1/16 b. 1/8 c. 3/8 d. 3/16 e. 1/32

  • QUESTION 2 White eyes is an X-linked recessive mutation and curly wings is an autosomal dominant...

    QUESTION 2 White eyes is an X-linked recessive mutation and curly wings is an autosomal dominant mutation in Drosophila. What proportion of red eyed, straight winged males is expected in the F2 starting with a true breeding white eyed, non-curly female mating with a true breeding male mutant only for curly. b3/16 Ос.О el e-1/32 QUESTION 3 Red-Green colorblindness is a X-linked recessive disorder. Huntington's is an autosomal dominant disorder. Susan's father is color blind and has Huntington's disease and...

  • In Drosophila, the autosomal recessive brown eye color mutation (b) displays interactions with both the X-linked...

    In Drosophila, the autosomal recessive brown eye color mutation (b) displays interactions with both the X-linked recessive vermilion mutation (v) and the autosomal recessive scarlet (s) mutation. Flies homozygous for brown and simultaneously hemizygous or homozygous for vermilion have white eyes. Flies simultaneously homozygous for both the brown and scarlet mutations also have white eyes. Flies that are wildtype at all 3 loci have wildtype eye color. Flies that are homozygous or hemizygous for the recessive mutant at only one...

  • Scalloped (sd) wing is an X-linked recessive and ebony (e) body color is an autosomal recessive...

    Scalloped (sd) wing is an X-linked recessive and ebony (e) body color is an autosomal recessive mutation in Drosophila. If a true breeding scalloped female that is wild type for ebony, is mated with a true breeding ebony male that is wild type for scolloped, what proportion of scalloped, normal body colored males is expected in the F2? a. 0 b. 1/16 c. 3/16 d. 1/32 e. 1/8

  • 2. A mutation in mice called short tail (st) causes defects in tail development. For the...

    2. A mutation in mice called short tail (st) causes defects in tail development. For the following 4 possibilities, indicate whether the males of the F1 will be ‘mutant’ or ‘normal’ and whether the females of the F1 will be ‘mutant’ or ‘normal’. You can assume that the male is the heterogametic sex (XY). please show steps TRUE-BREEDING PARENTS -> (P Generation) wild-type female               x mutant male mutant female             x     wild-type male If st is an autosomal recessive...

  • Please help me solve these review problems, please show work it'll help me understand how to...

    Please help me solve these review problems, please show work it'll help me understand how to solve them if on my upcoming exam. Thank you, and I will be sure to give thumbs up. If short hair (L) is dominant to long hair (I) and black hair (B) is dominant to brown (b) then to determine the genotype of a black short haired animal it should be crossed with c. llBb d. lbb e. Llbb White eyes is an X-linked...

  • In Drosophila, the X-linked recessive mutation vermilion (XV) causes bright red eyes, in contrast to the...

    In Drosophila, the X-linked recessive mutation vermilion (XV) causes bright red eyes, in contrast to the brick-red eyes of wild type (X+). Part A separate autosomal recessive mutation (br), causes the eyes to be brown. Predict the F1 results of the following cross: normal females x white males. (Assume that the parents are homozygous.) Flies carrying both mutations lose all pigmentation and are white-eyed. Label the diagram by dragging the labels to the appropriate targets. Note: not all labels will...

  • Some fruit flies have an autosomal mutation that causes the recessive white-eyes to appear compared to...

    Some fruit flies have an autosomal mutation that causes the recessive white-eyes to appear compared to the wild-type (dominant) red eyes, while others have an X-linked mutation that causes the same varieties. You are presented with two populations of flies in unmarked tubes: one that has the autosomal white-eye mutation, and a population that has the X-linked mutation for white-eye. Assuming you have separated the pure breeding red and white-eyed parents in each population, What is the set of two...

  • In Drosophila, the X-linked recessive mutation vermillion (v) causes bright red eyes, in contrast to the...

    In Drosophila, the X-linked recessive mutation vermillion (v) causes bright red eyes, in contrast to the brick-red eyes caused by the wild-type allele. A separate autosomal recessive mutation, brown (bw), causes flies to have brown eyes. Flies carrying both mutations have no eye pigmentation and are white-eyed. Determine the F1 and F2 phenotypic ratios for each sex from the following crosses: (a) brown females X vermillion males (b) white-eyed females X wild-type males

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT