Hybrid organisms produced by breeding animals or plants of different species are often sterile
...
Hybrid organisms produced by breeding animals or plants of different species are often sterile
because their chromosomes cannot successfully pair during prophase I. The table below lists
several common hybrids and the chromosome numbers of their parent species.
Johns
Hybrid
Male Parent
Female Parent
Hybrid Chromosome
number (2n)
Mule
Donkey
(Equus africanus asinus)
2n = 62
63
QUESTION
Horse
(Equus caballus)
2n = 64
Donkey
(Equus africanus
asinus)
2n = 62
Zedonk
Grévy's Zebra
(Equus grevyi)
2n = 46
QUESTION
Dog
Wolf-
dog
Wolf
(Canis lupus)
2n = 78
QUESTION
(Canis lupus
familiaris)
2n = 78
Rye
(Secale cereale)
2n = 14
56
Wheat
Triticale
(Triticum aestivum)
2n = 42*
hexaploid species (six full sets of chromosomes)
QUESTIO
Which hybrid is MOST likely to produce fertile offspring?
QUESTIC
Answers: 2
Biology, 21.06.2019 17:40, danielamadrid79
Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than
Answers: 2
Biology, 21.06.2019 18:30, nireegnu
Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time. c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions
Answers: 1
Biology, 22.06.2019 03:00, ultimatesaiyan
Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home. what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point
Answers: 1
English, 06.12.2021 22:10
Mathematics, 06.12.2021 22:10
Mathematics, 06.12.2021 22:10
Mathematics, 06.12.2021 22:10