🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Biology
1
answer
0
watching
173
views

If genes G and H are linked and separated by 14 map units, what percent of the gametes produced by a GgHh diploid will be parental?

86%

55%

28%

14%

7%

Watch
1
answer
0
watching
173
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Patrina Schowalter
Patrina SchowalterLv2
28 Sep 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

4. Imagine you cross a plant homozygous for the recessive trait hairless leaves (h) with a plant homozygous for the recessive trait glossy stems (g). Wild-type plants have fuzzy (H) leaves and waxy (G) stems. Mapping studies have indicated that the two genes are linked.

What are the genotypes of the parental and recombinant gametes produced by the resulting F1 plant?

Parental Gametes: _______hh_____ and ______gg______; Recombinant Gametes: _____hg_______ and ______gh_______.

If these two genes are very close to each other on the chromosome:

Which of the four phenotypic classes of selfed progeny from the F1 plant will likely be absent in the F2 generation?

_________________________

What phenotype classes of progeny will be most common if the F1 plant is crossed with a hairless, glossy plant?

______________________________ and ______________________________

1. What is the chromosome theory of inheritance?
2. Understand how independent assortment can cause gametes to have four combinations of alleles when an individual is heterozygous for two genes on two different chromosomes.
3. What are linked characters and linked genes? Understand why linked genes will not independently assort.
4. How can crossing over affect linked genes?
5. What are recombinant gametes?
6. Define recombinant frequency. Be able to use the recombinant frequency to determine how close two genes are on a chromosome.
7. What is a linkage map?
8. What is the function of the SRY gene on the Y chromosome? What happens if you don't have this gene?
9. Know how sex is determined in mammals, birds, bees and ants, and reptiles.
10. How many autosomes and sex chromosomes do normal human haploid and diploid cells have?
11. What does it mean for a gene to be X-linked or Y-linked?
12. Be able to answer word problems and fill out a Punnet square involving an X-linked recessive trait.
13. Which sex is more likely to have an X-linked recessive disorder? Understand why.

P.s The most simple answer would be preferable. I would be copping the notes over that you will provide to my noteb book and add my details to it.

Question:

If a female animal with genotype A/A. b/b (the back-slash indicates the chromosome) is crossed with a male that is genotypically a/a. B/B and the F1 is testcrossed, determine the percentage of the progeny from the testcross that will be a/a. b/b, if the two genes are:

a. Unlinked (Show your work).

Answer: AaBb X aabb AaBb – ¼ aabb - ¼ aaBb - ¼ Aabb - ¼ OK

b. Completely linked, i.e., no crossing over at all (Show your work).

Answer: With completely linked genes without crossing over, the only genes possible are AB and ab gametes.

Result:

Therefore the only possibility of having homozygous aabb is 50%.

No; a b is recombinant; please redo

c. 10 mp units apart (Show your work).

Answer: If the linked genes are 10 map units apart, 10% of the results would be recombinants. As F1 progeny ab is part of the parental class, only half of the total parental genotypes will be present. Therefore: 45%

No; a b is recombinant; please redo

d. 24 map units apart (Show your work).

Answer: Same rule applies for c. Therefore the percentage of progeny would be equal to 38%.

No; a b is recombinant; please redo

This is all the information given and need help. I've answered the question and my prof says the answers for b c and d are wrong. Could you please help me out? and also could you explain with the answers? Thank you.

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in