How may a gene be defined A. a segment of DNA
B. a segment of a protrein
C. a part of the cell membrane
D. a complete protein

Answers

Answer 1

Answer: The answer is (A) a segment of DNA.
A gene is the very basic unit of heredity, which is found along a segment of DNA, That contributes to phenotype expression.

Answer 2

Answer:

The answer is A. a segment of DNA

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in humans, the allele for hemophilia, h, is recessive. which is true of a woman with the genotype xhxh? a. the woman and all of her children are hemophiliacs. b. all of her sons will inherit the allele for hemophilia. c. she is a carrier of hemophilia but does not have the condition.

Answers

The answer is b. all of her sons will inherit the allele for hemophilia.

Hemophilia is X-linked recessive disorder. It is known that there are two X chromosomes (one from a mother and one from a father) in females and one X chromosome (from the mother) and one Y chromosomes (from the father) in males. In females, X-linked recessive disorder has the same pattern of inheritance as an autosomal recessive disorder.
So, if xh is recessive and xH is dominant allele, a mother which has xhxh genotype has the condition (so, c is not the right answer). Further, if a father has no condition, thus his genotype is xHy, their daughters will be carriers but without the condition (so, the choice a could be right only if we know that the father has hemophilia too (xhy). Therefore, since the mother (xhxh) will give her x chromosome to her sons, they will all inherit the allele for hemophilia, and choice b. is the right answer.

She is a carrier of hemophilia but does not have the condition

(I got it correct on Gradpoint)

According to the text, the growing demand for African slaves during the slave trade era motivated African leader toA. migrate large populations of people inland away from coastal threats by the shores.

B. initiate attacks of rival tribes in order to profit by selling captured Africans to the Europeans.

C. establish peaceful relationships wih the Europeans out of fear.

D. pay the Europeans lots of money to avoid becoming colonized.

Answers

The answer is B. Since slavery was introduced to the West Coast of Africa in the 1600s, it became a thriving trade that spurred the industrial revolution. The trans-Atlantic slave trade was used to put slaves on the farms in the Americas. The African leaders benefitted from the sale of Africans as slaves. Powerful kingdoms hence raided weaker tribes to capture slaves for sale to the Europeans.

According to the text, the growing demand for African slaves during the slave trade era motivated African leader to initiate attacks of rival tribes in order to profit by selling captured Africans to the Europeans. The correct option among all the options that are given in the question is the second option or option "B".

Explain why proteins are considered polymers but lipids are not

Answers

Answer:

Polymers are made from a chain of one similar subunit bound together in sequence. Proteins are made from polypepetide chains which are sequences of amino acid subunits. Another example of polymer is DNA and RNA made of nucleic acid subunits.

However, lipids do not have one similar subunit but rather variable ways in which the lipid chains can form. For example phospholipid unit is made of a phosphate molecule bound to a fatty acid chain and glycerol. A triglyceride is a subunit of glycerol bound to three fatty acids chains. Cholesterol is also considered a lipid but is made of carbon rings rather than chains. Lipids therefore cannot be referred to as a polymer.

LearnMore:

To learn more on polymers check out;

brainly.com/question/6368957

brainly.com/question/12296309

brainly.com/question/9154529

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Which of Kepler's laws gave Newton the idea about gravitational force and how it is related to distance?A. law of ellipses
B. law of relativity
C. law of equal areas
D. law of universal gravitation

Answers

Answer:d. law of universal gravitation

Explanation:

Match the sedimentary rock with its metamorphic equivalent. 1. slate A; sandstone B;shale C;limestone D;coal 2. graphite A; sandstone B;shale C;limestone D;coal

Answers

I've matched it like this, check it out:
slate - shale
sandstone - quartzite
coal - graphite
limestone - marble
I hope it helps.

Answer;

Shale - slate
Sandstone - Quartzite
Coal - graphite
Limestone - marble

Explanation;

Metamorphic rocks are those rocks that may have originally been sedimentary, igneous, or other metamorphic rocks, which were then subjected to different conditions such as new temperatures and pressures, that made them to recrystallize and form completely new forms of rocks.
For examples, when limestone is subjected to heat and pressure it turns to marble. Shale when subjected to pressure it becomes slate which is a harder rock. Sandstone becomes Quartzite under pressure.

A lunar eclipse happens when there is a _____ Moon.