BIOLOGY HIGH SCHOOL

Name three STIs that can be life-threatening or lead to life-threatening illnesses.

Answers

Answer 1
Answer: There are types of STIs that can be life-threatening or lead to other life-threatening illnesses. These STIs are syphilis, Gonorrhea, human papillomavirus (HPV), hepatitis B, and human immunodeficiency virus (HIV). However, response varies from person to person.
Answer 2
Answer:  Gonorrhea, human papillomavirus (HPV), hepatitis B, and human immunodeficiency virus (HIV). However, response varies from person to person.

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how many copies of each chromosome are contained in each of the daughter cells resulting from meiosis?

Answers

Each daughter cell has 23 of the 46 chromosomes. Sister chromatids make up each chromosome. Daughter cells enter meiosis II, the final step. Two haploid cells result from meiosis I.

What is meiosis?

Meiosis is a specialized kind of cell division that occurs in the germ cells of animals that reproduce sexually. This form of cell division is responsible for the production of gametes, such as sperm and egg cells. This process requires two rounds of cell division, and at the end of it, there are four cells that each have a single copy of each chromosome.

There are 46 chromosomes total, and each daughter cell has 23 of them. Each chromosome is composed of two sister chromatids. In the second and last stage of meiosis, daughter cells participate. Meiosis I always results in the formation of two haploid cells.

Learn more about meiosis, here:

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Answer:

Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II. At the end of meiosis I there are two haploid cells.

Explanation:

Hope this helps.

Predict the offspring for a cross of True-Breeding Lineage (BBEE x bbee

Answers

they will be of the same species same offspring

To amplify and express a gene of interest, it must first be cut out of the chromosomal DNA and inserted into what? A) restriction enzyme B) agarose gel C) vector D) none of these

Answers

The right answer is C) vector

In molecular biology and genetic engineering, vectors are DNA molecules that allow the propagation of sequences of interest. These are chimeric DNA molecules such as plasmids or artificial bacterial chromosomes, containing an origin of replication and one or more genetic markers. The origin of replication allows the maintenance of the vector in the target cell during generations.
Inserted into a vector so it can be inserted into another gene.

A chemical reaction is the only way to separate a? a.element b.pure substance c.mixture d.solution

Answers

I believe it's B. Pure substance, including that of compounds. An element can't be separated or broken down any further in terms of chemical composition. While some mixtures and solutions can be separated by physical means. Not solely relying on a chemical reaction.

Answer: B

Explanation:

How is vascular tissue arranged in dicot stems?A. in bundles in a ring
B. in randomly arranged bundles
C. in bundles near the outer edge
D. in a cross shape within the stem

Answers

The arrangement of vascular bundles in dicot stem is in the form of bundles in a ring.

Vascular bundles are the conducting tissues of the plant body. Their arrangement is quite different in monocots and dicots.

The vascular bundle in dicots are more complicated than that of monocots and arranged in the form of rings. They are designed in such a way that pits are concentrated at the core of the stem rather than being scattered throughout the plant.
In bundles in a ring is how a vascular tissue is arranged in dicot stems. 

Your answer is A. 

A sperm fertilized an egg. Which two structures will the fertilized egg contact?A) ovary and fallopian tubes
B) fallopian tubes and uterus
C) uterus and cervix
D) cervix and ovary

Answers

When the sperm fertilized the egg, the two structures that the fertilized egg will contact are the Fallopian tubes and uterus. The correct answer is option B. The union of the sperm and egg or also known as fertilization, happens in the Fallopian tube. And after five to six days, implantation happens in the uterus.

Answer:

correct answer is option B)fallopian tubes and uterus
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