![vanydparis](/avatars/18006.jpg)
vanydparis
09.07.2019 •
Biology
If this trisomic fly is the progeny of a male fly of genotype (ey+ ey−, gw+ gw−) crossed to a female fly with genotype (ey− ey−, gw− gw−), what can you conclude about the events that led to its formation? if this trisomic fly is the progeny of a male fly of genotype ( , ) crossed to a female fly with genotype ( , ), what can you conclude about the events that led to its formation? nondisjunction occurred in the male parent at the meiosis ii division to produce an (n+1) sperm that fused with a normal (n) egg. nondisjunction occurred in the male parent at the meiosis i division to produce an (n+1) sperm that fused with a normal (n) egg. nondisjunction occurred in the female parent at the meiosis ii division to produce an (n+1) egg that fused with a normal (n) sperm. nondisjunction occurred in the female parent at the meiosis i division to produce an (n+1) egg that fused with a normal (n) sperm.
Solved
Show answers
More tips
- S Science and Technology Colliders: How They Work and Why They Matter...
- S Science and Technology Exploring Our Galaxy: How Many Planets are in the Milky Way?...
- W Work and Career Everything You Need to Know About MBA Programs...
- B Business and Finance What is the Difference Between Visa and Visa Gold?...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- S Sport When and Where Will the 2014 World Cup be Held?...
- S Sport When is the Champions League final?...
- C Construction and repair How to Choose the Best Underfloor Heating?...
- A Animals and plants How ants survive winter: exploring the secrets of their winter life...
- A Auto and Moto How to Choose a Car Wash? Tips and Recommendations...
Answers on questions: Biology
- B Biology In some small birds and bugs the number of chromosomes is hard to determine...
- B Biology HELLPPPPPP HELLPPPPPP HELLPPPPPP HELLPPPPPP HELLPPPPPP...
- B Biology For the 3 → 5 template strand, replication occurs readily as the DNA polymerase follows the replication fork, assembling a 5 → 3 complementary strand. This complementary...
- B Biology Account for movement in metazoan...
- B Biology Given that the growing opinion root tip has 16 chromosomes in each cell ( normally). During the cell cycle, while the cell is growing and dividing, specify how many...
- B Biology Define cell and atom...
- B Biology During a cardiac arrest, or heart attack, blood flow to a person’s heart muscles gets cut off. Why is this such a huge problem? In your response: - Identify which...
- B Biology Which part of the respiratory system branches off of the trachea? a]diaphragm b]nasal cavity c]bronchus (bronchi, pl.) d] arynx...
- B Biology Evidence for Evolution:Quesuull The hip bone in whales, the leg bone in snakes, and the appendix in humans are examples of:...
- B Biology What s stomach and what job does it do...
Ответ:
Correct
"Nondisjunction occurred in the male parent at the meiosis I division to produce an (n+1) sperm that fused with a normal (n) egg."
It is during meiosis I that the homologous chromosomes are divided into two new cells. In this case, if a trisomy is present, it means that during this segregation part during meiosis I, two homologous chromosomes were not separated (nondisjunction) creating a gamete cell that had two copies of a chromosome (and another without any copy of that chromosome).
This error on meiosis I might have occurred in the male parent. As we can see from the schematic representation of the trisomy, there is two chromosomes with a wild allele (+). These alleles were only present in the male parent, as the female parent was homozygous for all genes, no wild allele (+).
Ответ:
ribosome
Explanation:
it’s known