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What cross could Morgan have performed to make the first white-eyed female fruit fly?
Morgan could have crossed a white-eyed male fruit fly (homozygous for the white-eye allele) with a wild-type red-eyed female fruit fly (homozygous for the red-eye allele). This cross would result in the F1 generation being all red-eyed females (heterozygous for the white-eye allele) and red-eyed males (hemizygous for the red-eye allele). Then, he could mate the F1 red-eyed females with each other to produce the F2 generation, which would include white-eyed females if the F1 females were carriers of the white-eye allele.
In a cross between individuals of a species of tropical fish all of the male offspring have long fins and none of the females possess the trait Explain a possible inheritance pattern of the trait?
The long fin trait might be controlled by a sex-linked gene located on the sex chromosome carried by males but not females. Since males have only one X chromosome (XY), they would always inherit the gene for long fins from the female parent who carries the trait. Females, having two X chromosomes (XX), would need to inherit the gene from both parents to express the trait.
Methods of working safely and hygienically and which minimise the risk of cross infection and cross infestations?
One method of working safely and hygienically and minimize the risk of cross contamination is to wash hands before handling anything in the workplace. It is also a good idea to wear protective clothing and gloves when necessary.
What is a cross called that involves one trait?
It is a dihybrid cross.An example: if you cross garden peas having round yellow seeds with others having wrinkled green seeds, that is a dihybrid cross, because you are tracking both seed shape and seed color.
Rr x Rr is an example of what type of cross?
Rr x Rr is an example of a monohybrid cross, specifically a cross between two heterozygous individuals for a single trait. This type of cross helps determine the possible genotypic and phenotypic outcomes for the offspring.
What part of martha is jimmy cross obsessed with?
Jimmy Cross wonders if Martha is a virgin and/or if she loves him
Can you fit a hornby virgin pendolino and a cross country voyager on the trakmat layout?
No
What is the fastest Cross Country time for a 4k for females?
10-12 minutes
Was the Virgin Mary with Jesus the night he died?
Yes, she too was standing at the foot of his cross.
Is it necessary to cross multiply when multiplying fractions?
No.
What symbol does Mexico worship?
Basically both the Christian cross and the Virgin Mary (of Guadalupe) icon.
How was it hard becoming a saint for the Virgin Mary?
It was difficult because she had to watch her Son Die on the Cross.
What is the journey time kings cross to Edinburgh with virgin trains?
4 Hours 30 Mins usually
What do you know of the virgin Mary after the crucifixion of Jesus?
After the death of Jesus on the cross, Jesus told the disciples to look after her.
Is it necessary to cross spark plug wires when changing them out?
never
Can you travel by train from Preston to Southampton?
Yes, Virgin West Coast to Wolverhampton then Arriva Cross Country to Southampton.
What was operation princess?
an operation setup by virgin cross country to run shorter trains running more frequently
