This is an example of chromosomal mismatch.
What is chromosomal?
Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule. Each chromosome is constructed from DNA that has been tightly wound around proteins called histones numerous times to support its structure.
When a cell is not dividing, chromosomes cannot be seen in the nucleus, not under a microscope. However, during cell division, the DNA that makes up chromosomes gets more compactly packed and becomes visible under a microscope. The majority of what scientists understand about chromosomes comes from studying them during cell division.
There is a huge difference between the goats and sheep's genetic maps.
sheep comes from the genus Ovis and consist 54 chromosome ,whereas goats comes from genus capra and consists 60 chromosomes .
Hence, due to chromosomal mismatch their offspring are rarely born alive.
To learn more about the chromosomal mismatch from the given link https://brainly.com/question/14661294
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