Nucleotide excision repair (NER) is used to repair mismatches that occur during replication. In what order do the necessary enzymes act/work to fix the DNA helicase? (There are two correct answers)

A mutation occurs that affects the process of DNA replication. The double stranded molecule is initially able to be separated at the origin of replication but downstream of the origin it becomes entangled and exhibits signs of extreme torsion. he mutation is most likely in a gene encoding which of the following components of DNA replication:

In DNA replication, the resulting molecules contain one strand of the original parental DNA and one new strand. What is the explanation for this phenomenon?

Marfan syndrome in humans is caused by an abnormality of the connective tissue protein fibrillin. People are usually very tall and tin, with long spindly fingers, curvature of the spine, sometimes weakened arterial walls, and sometimes eye problems, such as lens dislocation. Which of he following would you conclude about Marfan syndrome from this information?

Which of the following statements is true of a species that has a chromosome number of 2n=16?

A common type of deafness displays recessive inheritance. Nick was born deaf; however, both of his parents have normal hearing. From whom did nick inherit his deafness?

Which of the following conclusions resulted from the work of Avery, Mccarty, and MacLeod?

Which list ranks the molecules from most to least complex?

The following lists represents the progressive order of DNA packaging (least to most)

A native Idaho potato was genetically assessed for two traits of interest: size and starch content. Both large size and presence of starch are dominant over small size and absence of starch. What possible combination of gametes can a plant produce if it is small and is heterozygous for the presence of starch? (Use A/a for size and B/b for starch)

When an allele is labeled "recessive", it means that

Two organisms that are genetically identical exhibit varying phenotypes. What is most likely causing these polymorphisms? (There are two correct answers)

Histone acetylation _____ transcription; while histone methylation _____ transcription.

If Furmi, the "normal" tailed orange boy, and Adi, a Manx Tortie girl, had a litter of kittens, how many would be born with a tail and what is Adi's genotype? (Remember, the Manx trait is an example of an autosomal dominant lethal inheritance, and you have all the info needed to genotype both cats)

In a particular species of desert plants, cytosines make up 32% of the nucleotides. How many total purines are present in this plant's genome?

Which of the following happens in mitosis but NOT in meiosis?

Which of the following is true about asexual reproduction?

Through a microscope, you can see a cleavage furrow beginning to develop across the middle of a cell and nuclei forming on either side of the furrow. This cell is most likely _____.

Which of the following statements describes a major difference between mitosis and meiosis I in a diploid organism?

The unlettered circle at the top of the figure shows a diploid nucleus with four chromosomes (2n = 4) that are in the G1 stage of interphase. here are two pairs of homologous chromosomes, one long, and the other short. The circles labeled A to E show various combinations of these chromosomes. What is the correct chromosomal condition at prophase?

Albinism is an autosomal recessive trait. A man and woman both show normal pigmentation, but both have one parent who has albinism (without melanin pigmentation). What is the probability that their first child will have albinism?

The mitotic spindle plays a critical role in which of the following processes?

An organism with the genotype AABBCCDDEEFF mates with an organism with the genotype aabbccddeeff. Their F₁ progeny then self-fertilize. What number of F₂ progeny have the genotype AabbccDdEeFF?

Many organisms spend most of their life cycle in the diploid state. If meiosis produces haploid cells, how is the diploid number restored for these types of organisms?

The research I conducted for the completion of my PhD was to investigate plants that grew exceptionally well on really poor-quality soils. One hypothesis we tested was to determine if one traits (drought tolerance) was the result of many different genes working together. This is a classic example of which type of confounding feature of inheritance (CF)?

Which of the following is not common to both prokaryotic and eukaryotic cell division?

Put the following events in the correct order that they occur in during the entire cycle of meiosis:

I. Generation of two daughter cells from the original cell

II. Duplication chromosomes

III. Separation of homologous chromosomes

IV. Separation of sister chromatids

V. Crossing over

In humans, ABO blood types refer to glycoproteins in the membranes of red blood cells. People with type A blood have the genotypes I^AI^A or I^Ai, people with type B blood are I^BI^B or I^Bi, people with type AB blood are I^AI^B, and people with type O blood are ii. Blood type is inherited in an autosomal, co-dominant fashion. A woman with type A blood (I^Ai) is pregnant. The blood type of the father is currently unknown, except he knows that BOTH of his parents also have type O blood. What us the possible blood type(s) could the baby have?

During which phase of mitosis do the chromatids become chromosomes? (There are two correct answers)

Llamas have 37 pairs of chromosomes (36 somatic and 1 sex). How many chromosomes would cells have at the end of mitosis?

What is the main function of DNA helicase?