Answer:
They are sterile.
Explanation:
A mule is the offspring of a male donkey (jack) and a female horse (mare). Thus the number of chromosome of the donkey and the horse are quite different. A combination of the horse chromosome which is (64) and a that of the donkey chromosome which is (62) gives rise to 63 chromosomes in a Mule.
This major difference in number,forms and morphology typically prevents the chromosomes from pairing properly and producing successful embryos, as a result of this aftermath effect, it renders majority of the mules to be sterile.
The answer is 0.47 or 47%.
Let's first distinguish some terms and their frequencies.
R - the dominant allele that causes red eyes
r - the recessive allele that causes green eyes
Since R is dominant over r, lizards with at least one dominant R allele will have red eyes. Therefore, the genotypes and the phenotypes are as following:
genotypes - phenotypes
RR - the lizards with red eyes
Rr - the lizards with red eyes
rr - the lizards with green eyes
Now, we will use some Hardy-Weinberg equations:
p + q = 1
p² + 2pq + q² = 1
where:
p - the frequency of dominant allele R
q - the frequency of recessive allele r
p² - the frequency of lizards with genotype RR
2pq - the frequency of lizards with genotype Rr
q² - the frequency of lizards with genotype <span>rr
</span>
We are interested in <span>the frequency p of the dominant R allele.
</span>So, we have the frequency (72%) of the lizards that have red eyes. However, lizards with genotypes RR and Rr will have red eyes. Since their frequencies are p² and 2pq, respectively, we have:
p² and 2pq = 72% = 72/100 = 0.72
Now, use this in the equation p² + 2pq + q² = 1:
0.72 + q² = 1
q² = 1 - 0.72 = 0.28
From here, we will calculate q and later p using the formula p + q = 1:
q² = 0.28
q = √0.28 = 0.53
p + q = 1
p + 0.53 = 1
p = 1 - 0.53
p = 0.47
Animal Types and Characteristics
Mammals:body covered by hair or furwarm-bloodedhave a backboneproduce milk
Reptiles:body covered by scalescold-bloodedhave a backbonemost lay hard shelled eggs on land
Birds:body covered by featherswarm-bloodedhave a backbonelay eggs
Insects:most are small air-breathing animals6 legs2 antennae3 body sections (head, thorax, abdomen)Spiders:also termed arachnids8 legs8 eyesthey spin webs
Aquatic Animals:most have gillsfound in lakes, rivers, and oceans
I believe the correct answer is homeostasis.