From what I have been taught at any point mutations can occur.
Answer:
Option D.
Example of a species is a donkey and a horse mate to produce a mule that is sterile and is unable to produce babies.
Explanation:
- Species is the group of organisms that interbreed or have the potential of interbreeding in nature.
- Even if they look very different in appearance but interbreed then simply they are species.
- The organism that reproduce asexually cannot be mentioned under species.
- Some animals form naturally hybrid and mostly mate with their own groups.
- So donkey and horse mates to produce a new living, which is considered as the species.
Monozygotic twins are twins who are nearly identical, whereas dizygotic twins come from two separate ova.
Monozygotic twins- Identical twins, also known as monozygotic twins, are produced when a single egg is fertilized by a single sperm, resulting in the fertilized egg dividing into two. Identical twins always have the same sex and have the same DNA.
Dizygotic twins- Dizygotic twins are two siblings that develop from different ova, or eggs, that are produced from an ovary at the same time and are fertilized by different sperm. They are also known as fraternal twins or nonidentical twins.
Ova- In most anisogamous species, the female reproductive cell, or gamete, is the egg cell, or ovum (plural ova).
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Answer:
You are a family physician and you have several patients that are coming in to have their moles looked at for possible melanoma.For each of the following patients use the ABCD chart to identify whether their moles are suspicious for melanoma.In the box below each mole image write a summary paragraph answering the following:1.Is there a possibility the mole is cancerous and why/why not?2.What is your advice to the patient for this mole? (none, proper sun care, removal, etc.)The diameter is too big and the color variation is different he just is unlucky because he may have skin cancer. The border is bad and its asymmetrical. Must see doctor.Patient 3 InformationPatient is 30 yr. old Native American female with medium skin tone with no history of skin cancer.She has had very little sun exposure and it is located on the medial side of her right knee and is 14 mm.The mole border looks pretty good, and the color is consistent.But due to his family’s history he should really get checked out and have an infinite amount of sunscreen on when he is outside.Plus the diameter is smaller than a pencil’s eraser which is 6mm.Patient 2 InformationPatient is 10 yr.old Caucasian male with very fair skin who has no history of skin cancer, but every member of his family has.He has had average sun exposure and it is located 3 inches distal of his left elbow and is 4 mm.The mole may be cancerous because she has already had 3melanomas removed. The mole looks like it varies in color, the border is all over the place and it’s not symmetrical. She also confesses to being at the beach all the time. My advice would be to get a full evaluation done and to stay out of the sun.Patient 1 InformationPatient is a 73 yr.old Caucasian female with fair skin who has had 3 melanomas removed in the past 2 years.She is a self-confessed beach bum and has been since 1950.It is located on her right shoulder and 6 mm.
