False. Strontium 90 has a half life of only 30 years, and as millions of years pass, about the time fossils have been around, most if not all of any strontium would have decayed.
<span>Atherosclerotic
peripheral vascular disease is symptomatic with at least 50% occlusion. The primary peripheral symptom, due to ischemia, is calf pain.
</span>This disease is a form of arterial insufficiency, which means that blood circulation through the arteries is decreased.<span>Other symptoms include painful cramping in the hip, thigh or calf muscles after certain activities, such as walking or climbing stairs (claudication)<span> and leg numbness or weakness.</span></span>
Answer:
Adolesence is the period following puberty where one develops from a child to an adult. They changes that occur are involved with puberty and include growth of sexual organs, menstruation, and an assortment of chemical changes in the brain. It typically occurs from age 9 throughout the teenage years.
Answer:
At meiosis II in the mother
Explanation:
Both the parents have normal vision but both the sons are colorblind. Since colorblindness is X linked recessive disorder, the sons have obtained the allele for colorblindness from mother. This makes the mother carrier for colorblindness. The genotype of the mother is X^cX. The young man with Klinefelter syndrome is colorblind which means that he is homozygous recessive for the allele of colorblindness. His genotype is X^cX^cY. Since this man has obtained two copies of the allele of colorblindness, the mother must have experienced nondisjunction at meiosis II during gamete formation.
Anaphase-II of meiosis II separates and segregates the sister chromatids (now called daughter chromosomes) to opposite poles. Failure of segregation of two copies of X^c chromosome of mother to opposite poles and their distribution to the same egg cell resulted in the formation of an egg with two copies of X^c chromosome. Fertilization of this egg with a sperm carrying "Y" chromosome as sex chromosome resulted in a zygote with X^cX^cY that developed into the man with Klinefelter syndrome and colorblindness.
Answer:
Domain
Explanation:
The order of classification is like this (from biggest to smallest):
Domain -> Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species
Hope this helped!
