BIOLOGY COLLEGE

J and K want to have a baby, but they are a little concerned because they both have the sickle cell trait. They want to know what the possibility is that their child may actually have the disease. 1. Develop a Punnett square depicting the possibility that their offspring will have the trait and/or the disease.

2.How would the nurse interpret this Punnett square?

Answers

Answer 1
Answer:

Answer:

Sickle cell anemia is an autosomal recessive disorder. For the trait to occur, both of the alleles in an individual should be recessive. Parents who both have sickle cell anemia will have 100% results for their children to carry the disease. The results can be depicted from the following punnet square:

       s               s

s     ss              ss

s      ss             ss

The results will be interpreted by the nurse as having 100% chance for the parents to have the child born with sickle cell as both the parents carry the disease  which is autosomal recessive.

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Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. Single-celled organisms may use cell division as their method of reproduction. Regardless of the reason for mitosis, the process ensures genetic continuity. Consider the model of the cell cycle. Which detail(s) from the model best support the argument that cell division promotes genetic continuity?
Within a narrow range of temperatures, S. marcescens produces a red pigment called prodigiosin. Although the ultimate purpose of the pigment is a mystery, it is known that at least 10 enzymes are required for its production. If one of these enzymes is rendered nonfunctional, how would you expect the appearance of the bacteria to change?
Which of the following represents a genotype that is homozygous recessive
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In which of the following circumstances may animal work begin before receipt of IACUC approval? A. It is a continuing study awaiting three year renewal and for which the renewal protocol has been submitted to the IACUC.
B. It is a small pilot study on non-AWAR species.
C. It is a teaching activity that uses students' personally owned dogs and cats.
D. There are no circumstances in which animal work may begin before IACUC approval.

Answers

Answer: the correct option is D (There are no circumstances in which animal work may begin before IACUC approval)

Explanation:

The IACUC known as Institutional Animal Care and Use Committees is a local working group that research facilities must appoint in accordance with the Animal Welfare Act , Policy on Human Care and Use of Laboratory Animals. It was introduced to research system by the U.S. government in 1986. The policy protects all warm-blooded animals except rats, mice, and birds bred for research. For an institution to use a specie that is covered by the policy, it must obtain their approval before work begins. I hope this helps. Thanks.

What is muscle memory? What does new research say about muscle memory?

Answers

Muscle memory is a form of procedural memory that involves consolidating a specific motor task into memory through repetition, which has been used synonymously with motor learning.

A man with type ab blood and a woman with type b blood have a baby has type o blood. should there be any reason for concern? why?

Answers

Yes, there should be a concern because it was theoretically impossible for type AB blood parent to have a child with type O blood.
Blood type is coded by two alleles, which have three possible type: A, B and O. The O alleles is recessive, so you need two O allele(from both parent) to have type O blood child.
A person with type AB blood type allele should be one A and one B, so it is impossible to get O allele him.

Which receptors are involved with the proprioception sense?A: stretch receptors in the muscles, tendons and ligaments

B: the macula and otoliths in the vestibule

C: Nociceptors in the muscles and joints

D: The crista ampullaris in the semicircular canals.

Answers

Answer:

A: stretch receptors in the muscles, tendons and ligaments

Explanation:

Proprioception (or kinesthesia) is defined as any postural, positional information transmitted to the central nervous system by stretch receptors in the muscles, tendons and ligaments, joints or skin. In other words, it is the awareness of the movements produced by our members.

These receptors are found within the somatic nervous system, responsible for the different sensory experiences received and interpreted by our body. The most basic function of receptors is to provide the central nervous system (CNS) with information about the internal conditions of organic structures and the external environment.

Which of the following adaptations of the flowering cactus would not be considered a nonspecific defensive mechanism?A.) The generation of nectar
B.) The growth of spines
C.) The presence of toxins in seed casings
D.) The production of resins

Answers

Answer: Option A.

The generation of nectar in flowering cactus is not a nonspecific defensive mechanism.

Explanation:

Cactus is a xerophytes that have adaptations to survive in its environment.

Cactus have extrafloral nectaries that produce nectars for pollination.The generation of Cactus nectars is just to attract insects like bees for polloniation and not as nonspecific defensive mechanism.

Which argument of Lamarck's theory of evolution was incorrect?Question 1 options:

Mutations give rise to variability


Giraffes' necks got longer over time


Traits can be passed from parent to offspring


Accumulated changes in an individual are passed on to its offspring


All species evolve over time

Answers

Accumulated changes in an individual are passed on to its offspring is the argument of Lamarck's theory of evolution which was incorrect and is option D.

Wisemen discarded the above-mentioned statement and gave the concept of germ cells and somatic cells. Also, he conducted an experiment in which he removed the tails of rats for 22 continuous generations, but it was noticed that the rats of the 23rd generation were still born with a tail.

This proved that the changes were occurring in somatic cells which are not responsible for changes in the offspring. The actual changes in the offspring are due to mutations occurring in the germ cells, so Lamarck's theory was discarded.

To learn more about Lamarck's Theory:

brainly.com/question/12286104
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