Question

A horse and a donkey can breed to produce a mule which is an infertile animal. The infertility is because horse and donkey belong to different
A.Class
B.Order
C.Species
D.Genus

Answer 1

Hint: A horse (Equus ferus caballus) and a donkey (Equus africanus asinus) will breed to provide mules, that is Associate in Nursing unfertilized animals. The physiological condition is as a result of horse and donkey belong to completely different species. Mule is medium weight animals that square measure additional industrious and durable than horse and donkey.

Complete answer:
Fertility. Mules and hinnies have sixty three chromosomes, a combination of the horse's sixty four and also the donkey's sixty two. The various structure and range sometimes prevents the chromosomes from pairing up properly and making in embryos, rendering most mules unfertilized.
They are sterile as a result of they cannot create spermatozoon or eggs. they need to bother creating spermatozoon or eggs as a result of their chromosomes not matching up well. A mule gets thirty two horse chromosomes from mommy and thirty one donkey chromosomes from dada for a complete sixty three chromosomes. (A horse has sixty four chromosomes and a donkey has 62).

Animals like horses, donkeys and zebras square measure entirely separate species. However, they all evolved from a constant family referred to as Equidae. These species all belong to a sub-family of animals referred to as Equus.
The mule may be a hybrid cross between a male donkey (jack ) and a horse (mare). As a result of the mule most frequently demonstrates the simplest traits from every parent, he possesses what we tend to decide is hybrid vigor.
A mule is the offspring of a male donkey (jack) and a horse (mare). Horses and donkeys square measure completely different species, with completely different numbers of chromosomes. Mules are often light-weight, medium weight or once created from draught horse mares, of moderately serious weight.

A zorse is the offspring of an equid male horse and a horse mare. This cross is additionally referred to as a zebrula, zebrule, or equid mule. The rarer reverse pairing is typically referred to as a hebra, horbra, zebrinny, zebret, or equid equid. Like most alternative animal hybrids, the zorse is sterile.

Hence the correct answer is OPTION(C)

Note: A mule is the offspring of a male donkey (jack) and a horse (mare). Horses and donkeys square measure completely different species, with completely different numbers of chromosomes. Of 2 initial generation hybrids between these two species, a mule is less complicated to get than an equid, that is, the offspring of a feminine donkey (jenny) and a male (stallion).