The bones in the front limbs of many mammals are similar in their structure and arrangement because they have common ancestors. The term used to describe the physical similarities between related species is Homologous organs. A very common example of homologous structure in mammals are forelimbs of human, whale and dogs. These structure perform different function such that the forearm of human is used for holding things, flippers of whale are used for swimming and forearm of dog is used for walking and running.
Answer:
9/16
Explanation:
This is a typical dihybrid cross involving two genes; one coding for anridia (form of blindness) and the other for Migraine headache, both in humans. The allele for possessing anridia (A) is dominant over the allele for not possessing it (a) in the first gene, while the allele for having Migraine headache (M) is dominant over the allele for not having it (m) in the second gene.
A cross between a man that is heterozygous for both genes (AaMm) and a woman also heterozygous for the two genes (AaMm), this means that both parents are dominant for the two traits i.e. they both possess anridia and migraine headache.
Both parent cells will undergo meiosis to produce four possible combination of gametes in which the alleles are independent of one another in the gametes, according to Mendel's law of independent assortment. The gametes are: AM, Am, aM, am
These gametes are crossed using a punnet square (see attached image) to produce 16 possible offsprings in a phenotypic ratio of 9:3:3:1.
9- Offsprings with both anridia and migraine
3- Offsprings with only anridia but without migraine
3- Offsprings with only migraine but without anridia
1- Offsprings without both anridia and migraine
According to the question, the chance of an offspring expressing both traits i.e. having both anridia and migraine headache is 9/16
approximately 20%
____________________________
*100% CORRECT ANSWERS
Question 1
The principal characteristic that differentiates temperate and tropical rainforests is __________.
latitude
Question 2
Which of the following are important products of rainforests?
all of the choices
Question 3
Which of the following best describes the use of rainforest plants as anticancer drugs?
Twenty-five percent of the active ingredients in cancer drugs are exclusively rainforest plants.
Question 4
Which of the following is the most direct method for combating rainforest deforestation?
rehabilitation
Question 5
The sustainable use of rainforest resources is exemplified by _______.
harvesting nuts
Question 6
Which of the following best describes the impact of rainforest deforestation on global precipitation?
The pattern of global precipitation is altered.
Question 7
A forester is _______
a person who manages and supervises land used for timber production
Question 8
Which of the following is a technology used by foresters?
all of the choices
Question 9
Even-aged management practices involves clearing trees that _______.
are all near the same age
Question 10
Which of the following forest management practices is best for reestablishing areas of forest?
reforestation
Question 11
How do trees act as carbon sinks?
all of the choices
Question 12
How does the destruction of forests contribute to levels of atmospheric carbon?
Fewer trees leads to smaller amounts of carbon dioxide being absorbed from the atmosphere.
Question 13
What fraction of the fossil fuel emissions in the United States could be absorbed by converting 25% of agricultural land in the U.S. to native forests?
approximately 20%
Question 14
Why is clearcutting an especially damaging forestry practice for species that rely upon older trees for their survival?
Clearcutting removes all trees in a stand, old and young.
PLATO
A.
More offspring are born than can be supported by the environment.
B.
If too many offspring are born, they will be forced to compete for resources.
C.
Genetic variation leaves some offspring better adapted to their environment than others.
Answer: process indicators
Explanation:
Process indicators are used to measure the steps in a process and tasks people or devices do, from conducting appropriate tests, to making a diagnosis, to carrying out a treatment.
It can be used to AID diagnosis, and OBJECTIVELY measure the response of a patient to therapy.
So, Process indicators is the right answer