BIOLOGY HIGH SCHOOL

All are effects of crossing over of homologous chromosomes during prophase I of meiosis except...- increased genetic variety
- increased number of chromosomes in the offspring
- the appearance of new phenotypes in the offspring
- possible harmful mutations from cross-over errors

Answers

Answer 1
Answer: B- increased number of chromosomes in the offspring
Answer 2
Answer:

Answer:

B. increased number of chromosomes in the offspring.

Explanation:

Crossing over may cause chromosomes to lose or gain segments, but the overall number would not change.

Related Questions

As a result of meiosis, a gamete receives 1) a double set of the parent's chromosomes 2) two double sets of the parent's chromosomes 3) a single set of the parent's chromosomes 4) a different set from the parent's chromosomes
Genes are segments of a chromosome that are responsible for specific hereditary traits. Please select the best answer from the choices provided.a. True b. False
The most accepted theory regarding the make-up of living things is the _____.organismal theorycell theorychromosomal theory
Jane supplied plenty of water, minerals, sunlight, and carbon dioxide for her plant. But the plant still didn't do well. What might be the reason?
How does anatomy provide evidence for evolution?

A student is investigating the effect of plants on inbox air quality and states if plants are added to an indoor environment the air quality will improve this statement is an example of. a. a theory. b. a procedure. c. observationsd. a hypothesis

Answers

So all we know is that the student stated something ("if plants are added to an indoor environment the air quality will improve "). This is only a statement - it's not a test whether this statement is true yet.
 
So the correct answer is: it is a hypothesis.
Hypothesis!!!!!!!! Is correct.

The soupy food that is sent to the small intestines is called chyme.


TrueFalse

Answers

True! 
Hope this helps you!

Answer:

True

Explanation:

Chyme

The Digestive System

Food usually goes down the trachea.
True
False

Answers

False. Food goes down your esophagus whereas your trachea goes to your lungs.
false if it goes down the trachea it would be going to the lungs. a person would be choking. food travels down the esophagus to the stomach

What is included in key waterways in the South during the Civil War?A. the Mississippi, Ohio, and Tennessee rivers.

B. the Great Lakes and the Mississippi River.

C. the Ohio, Tennessee, and Columbia rivers.

D. the Great Lakes and the Columbia River.

Answers

"The Mississippi, Ohio, and Tennessee rivers" are the ones among the following choices given in the question that is included in key waterways in the South during the Civil War. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer has helped you.

The answer is A. The Mississippi, Ohio, and Tennessee Rivers

The human genome project enables researchers to pinpoint diseas causing genes and possibly prevent or treat them

Answers

This is true

The Human Genome Project was an international biological project that was created to determine the sequence of the human DNA, and locating and mapping the entire genes of the human genome in terms of structure and function. The Human Genome Project allows researchers to discover disease causing genes and possibly prevent or treat them. In 2001, the Human Genome Project researchers discovered a new tumor suppressor gene on human chromosome 7 which is involved in prostate and breast cancer. Also in 2000, researchers in Japan and Germany discovered the genetic code of human chromosome 21 and was identified to be involved with diseases such as amyotrophic lateral sclerosis, Down syndrome and Alzheimer's disease.
Hi There! :)

The human genome project enables researchers to pinpoint diseas causing genes and possibly prevent or treat them?

True!

Terrance, whose birth mother drank heavily throughout pregnancy, has a thin upper lip, short eyelid openings, a small head, and a smooth philtrum. His physical growth has been slow, and he shows impairment in memory, attention span, motor coordination, and social skills. Terrance has __________. a. partial fetal alcohol syndrome
b. alcohol-related neurodevelopmental disorder
c. fetal alcohol syndrome
d. cytomegalovirus

Answers

Answer:

c. fetal alcohol syndrome

Explanation:

Fetal alcohol syndrome is the disorder that occurs in children who are exposed to alcohol during embryonic development due to alcohol consumption by their mothers.  

Fetal alcohol syndrome is characterized by stunted growth of child and problems associated with the nervous system. Impaired neurological development makes these children slow learners and affects their motor skills.  

Terrance's mother also consumed alcohol during pregnancy and exposed him to alcohol. His alcohol exposure resulted in fetal alcohol syndrome affecting his growth and mental development. Fetal alcohol syndrome also affects the shape and size of facial parts such as lips, eyelids, and head as exhibited by Terrance.  
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