X chromosome

caused by abnormalities in one of the X-chromosomes. While turner syndrome’s symptoms may be mistaken at birth. However, the condition often isn’t diagnose until puberty. Although, with all other diseases most people don’t understand the dieses. So it goes untreated and the sighs are not taken seriously. Turner syndrome is a genetic cause. Females have two X-chromosomes. While the male have Y and X-Chromosomes. When a baby is born they are born with 23 chromosomes. To determine the gender of…

It results in the sex chromosome being incomplete and results in an ‘XO’ in the 23rd pair instead of the regular ‘XX’. This results in the birth of a female with Turner’s syndrome – resulting in a short stature, infertility, heart defects and learning disabilities. As Turner’s syndrome is due to an incomplete meiosis division, it is random and not hereditary. This affects 1 in 2000 baby girls. During regular meiosis, in interphase the DNA is replicated once, the chromosomes will find their…

and meiosis two. The guided question I answered was how does the process of meiosis reduce the number of chromosomes in a reproductive cell? It is important for scientists to answer this question because they need to learn how a reduction in chromosomes is very critical. Without it the two gametes during fertilization, the offspring would result in with two times the regular number of chromosomes. Scientist use models to demonstrate mitosis one, mitosis two, meiosis one, and meiosis two. A…

fissions of the nucleus which result in four gametes or sex cells. Each cell possesses half the number of chromosomes of the parent cell. The process of meiosis occurs…

many offspring and the offspring are created in a very fast fourteen-day cycle. The mutations are easy to identify because the traits that are affected are noticeable. (1) It contains only a few chromosomes. The only ones that contain a significant amount of genetic information are chromosomes two, three, and X. The female…

3 Chromosomes are thread-like structures which consist of DNA and other proteins. Chromosomes are present in every cell of the human body so that information can be carried for that cell to develop. The human body normally consists of 46 chromosomes which then can be paired into 23 pairs. 22 pairs of chromosomes are similar in both males and females which are commonly known as autosomes. However, the 22nd chromosomes (X and Y) are different as these are the sex chromosomes. The human cell can…

of muscle cells and tissue. Duchenne Muscular Dystrophy is one of many types found and it passed down through the X chromosome. DMD is one of the most common muscle diseases found in early childhood. 1 in 3500 boys are born with DMD however very rarely affects girls with a 1 in 50million chance. It is caused by a small mutation in the DMD gene and it is inherited by families in an X-linked recessive fashion. Those who suffer from DMD generally lose muscle function which often occurs in weakness…

inherits the hemophilia on his X chromosome will be a hemophiliac. A girl who inherits the defective gene on one of her X chromosomes will be a carrier. Interestingly, she might transmit the defective gene to her children, but she won’t get the disease. (galegroup.com) They are called first-pregnancy hemophiliacs if their first child is a boy, and he inherits the disease. Boys have one X chromosome, and one Y chromosome, but girls have 2 X chromosomes, and one Y chromosome. (worldbook.com) She…

Insoo Cho Dr. Danzi Engoron BI356 Genetics Currently, there are more than 600 genetic disorders known, all caused by defective genes. Genetic disorders result from the accumulation of the harmful substance in the body or from an inability of the body to produce or utilize essential substances that influence development and function. Most of the time genetic disorders are passed down through family, however, sometimes they can also be due to gene mutation caused by a combination of both…

that will be explored regarding the hypothesis and the findings is “A Gene Mystery: How Are Rats with No Y Chromosome Born Male?” By Steph Yin. This article was published by the New York Time on May 12, 2017. The main topic of this article is the endangered Amami spiny rats which are found in Japan. These rats are the focus of the experiment because these rats have lost their “Y chromosome and as well have lost the gene SRY (which is considered the master switch of male anatomical development in…