Blog

Briefly describe and differentiate a carrier screening and a diagnostic test.

What are two methods that can be used to obtain genetic material from a fetus inside the uterus if diagnostic testing is necessary before birth? [answer1] and [answer2]

Briefly describe why are X-linked recessive traits more common in males versus females?

Which stage of meiosis explains Mendel’s Law of Independent Assortment (i.e., that half of gametes get one gene copy, and the other half of gametes get the other gene copy)?

Which of the following best describes an allele that is haplo-sufficient?

What type of sample is needed for prenatal cell-free fetal DNA (aka non-invasive pre-natal diagnosis) testing?

Normal blood clotting is dominant (N) and hemophilia C is recessive (n); normal hearing is dominant (H) and an allele that causes deafness is recessive (h); blood type B is dominant (IB), and blood type O is recessive (i). A man is homozygous dominant for normal blood clotting, heterozygous for hearing, and heterozygous for blood type B; a woman is heterozygous for blood clotting, heterozygous for hearing, and heterozygous for blood type B. Regarding these 3 genes, how many different types of gametes can the male make? [answer1] Regarding these 3 genes, how many different types of gametes can the female make? [answer2] What proportion of their offspring are expected to have normal blood clotting, normal hearing, and blood type B? [answer3]  

In humans, the normal allele (N) is dominant and the affected allele (n) is recessive.  What is the phenotype of a heterozygous individual? [answer1] What is the genotype of a heterozygous individual? [answer2] What is the genotype of a homozygous dominant individual? [answer3]

What is wrong with the following code that displays a Linear Linked List?   public void display(){ Node curr = head; while(curr.next != null){ System.out.println(curr.data + ” “); curr = curr.next; }}

How much work is done by gravity as the boy pulls his 20-kg sister over a distance d = 40 m? F = 49 N. 2-21.jpg