» Site Navigation
2 members and 3,377 guests
Most users ever online was 6,337, 01-24-2020 at 04:30 AM.
» Today's Birthdays
» Stats
Members: 75,093
Threads: 248,535
Posts: 2,568,714
Top Poster: JLC (31,651)
|
-
Registered User
Male maker x female banana?
What normally happens if you breed a male maker banana to a female banana? Does the banana offspring still come out as males or does it normalize the ratio because of the genetics from the female?
-
-
Re: Male maker x female banana?
The female will throw a normal sex ratio but ,iirc, any males produced will be female makers.
Derek
7 adult Royals (2.5), 1.0 COS Pastel, 1.0 Enchi, 1.1 Lesser platty Royal python, 1.1 Black pastel Royal python, 0.1 Blue eyed leucistic ( Super lesser), 0.1 Piebald Royal python, 1.0 Sinaloan milk snake 1.0 crested gecko and 1 bad case of ETS. no wife, no surprise.
-
-
Re: Male maker x female banana?
Short answer:
The result is expected to be banana females, normal females, super banana males and male maker banana males in approximately equal numbers. Rarely a super banana female, normal male or female maker banana male shows up.
Long answer:
Xb = banana gene on X choromosome
X+ = normal gene on X choromosome
Yb = banana gene on Y choromosome
Y+ = normal gene on Y choromosome
Xb/Xb = super banana female
Xb/X+ = banana female
X+/X+ = normal female
Xb/Yb = super banana male
Xb/Y+ = banana male (female maker)
X+/Yb = banana male (male maker)
X+/Y+ = normal male
Most of the time, a banana male (male maker) (X+/Yb) x banana female (Xb/X+) produces
1/4 Xb/X+ = banana female
1/4 X+/X+ = normal female
1/4 Xb/Yb = super banana male
1/4 X+/Yb = banana male (male maker)
In the above list, the egg's chromosome is first, and the sperm's chromosome is second.
Less than 10 percent of the sperm and eggs have a crossover. In sperm, the banana gene on the Y chromosome has switched to the X chromosome, and the normal gene on the X chromosome has switched to the Y chromosome. In eggs, there is no difference between crossovers and non-crossovers.
Results from crossovers:
1/4 Xb/Xb = super banana female
1/4 X+/Xb = banana female
1/4 Xb/Y+ = banana male (female maker)
1/4 X+/Y+ = normal male
In the above list, the egg's chromosome is first, and the sperm's chromosome is second.
-
The Following User Says Thank You to paulh For This Useful Post:
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
|