Answer:
If both parents do not have sickle-cell anemia, than the possibility is low.
Explanation:
If both parents have the sickle-cell trait, their offspring has a 25 percent chance of getting sickle cell anemia and a 50 percent risk of them having sickle cell trait. Meanwhile, there is also a 25 percent chance of the child not getting it at all.
If one parent has sickle cell anemia and the other has sickle cell trait, then their offspring with have a 50 percent chance of getting sickle cell anemia and a 50 percent chance of getting a sickle cell trait.
When both parents have sickle cell anemia, their child will definitely have it.
The correct answer is option C
The original source of energy is the sun while most of the energy in the organisms is used in the form of energy. The energy from the sun is used by the green plants to make food by the process of photosynthesis and this food is used by the human beings and animals. The energy in animals and human is in the form of ATP.
With the actions of the humans the biodiversity is facing a huge problem in most of the world, the habitats are destroyed, forests are cleared, animals are killed, water and air are polluted...
In order to conserve the biodiversity there are certain things that have to be put in action. The methods for conservation can be in-situ methods and ex-situ methods.
The in-situ methods are the preferred ones, as these methods are focused on conserving the environment as it is. This basically means that the ares that have larger biodiversity, and especially where there's species that are rare, should be made national parks, sanctuaries, monuments of nature, thus being protected by law.
The ex-situ methods are the ones that involve the conservation of the species outside of their natural habitat. That is done with gene banks, sperm and ova banks, seed banks, zoos and botanical gardens, collections of In vitro plant tissue and microbal culture, and captive breeding of animals and artificial propagation of plants.
Answer and Explanation:
<u>Available data:</u>
- New breeding occurred between two different cats.
- Both cats were heterozygous hairy cats,
- One parent loved sinks and the other parent disliked sinks.
Let us say that:
- the gene for the cat hair trait is H, being "H" the dominant allele expressing hair, and "h" the recessive allele expressing hairless.
- the gene for the sinks-liking trait is S, being "S" the dominant allele expressing sinks-liking, and "s" the recessive allele expressing sinks-desliking
If both cats are heterozygous for the hair trait, then their genotypes would be Hh in both animals.
One of the cats likes sinks, so its genotype would be S-. The "-" symbol means that we do not know if this is a homozygous or heterozygous animal. The other cat disliked sinks, so its genotype for the trait would be ss.
Cross: HhS- x Hhss
Gametes) HS hS H- h-
Hs hs Hs hs
Punnet square: HS hS H- h-
Hs HHSs HhSs HHs- Hhs-
Hs HHSs HhSs HHs- Hhs-
hs HhSs hhSs Hhs- hhs-
hs HhSs hhSs Hhs- hhs-
a) List the genotype of each parent based on the information above.
Parent 1: HhS- ---> there are two possibilities: HhSs or HhSS
Parent 2: Hhss
b) Determine how many of the potential offspring would be hairless and love sinks
If parent 1 is HhSs, the potential offspring that would be hairless and sinks-loving would be 2/16=1/8. Its genotype would be hhss.
HS hS Hs hs
Hs HHSs HhSs HHss Hhss
Hs HHSs HhSs HHss Hhss
hs HhSs hhSs Hhss hhss
hs HhSs hhSs Hhss hhss
But if parent 1 is HhSS, there would not be any individual hairless and sinks-loving. All of them would be heterozygous for sinks-liking.
HS hS HS hS
Hs HHSs HhSs HHSs HhSs
Hs HHSs HhSs HHSs HhSs
hs HhSs hhSs HhSs hhSs
hs HhSs hhSs HhSs hhSs
Answer: Allopatric speciation
Explanation:
Allopatric speciation refers to the rise of new distinct species of offspring from parental organisms that DO NOT live in the same territory, that is geographically isolated and thus unable to crossbreed.
Definitely, the emergence of healthy and hybrid offsprings from the TWO species of antelope, from Africa and Asia, breed together in the Zoo could be explained by ALLOPATRIC SPECIATION.
