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Lisa [10]
3 years ago
11

What if DNA was parellel ?

Biology
1 answer:
cupoosta [38]3 years ago
5 0
In biochemistry, two biopolymers are antiparallel if<span> they run </span>parallel<span> to each other but with opposite alignments. An example is the two complementary strands of a </span>DNA<span>double helix, which run in opposite directions alongside each other.</span>
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Sex chromosomes are:
LenaWriter [7]

Answer:

D. the 23rd pair of chromosomes

Explanation:

Humans have a total of 23 pairs of chromosomes. Out of a total of 23 pairs, 22 pairs are autosomes. Autosomes are the chromosomes that carry the genes for all the genetic traits but are not involved in the sex determination of the individuals.

The 23rd pair of chromosomes in humans is of sex chromosomes as these chromosomes carry the genes to regulate the gender of the individuals. A human female has two copies of the X chromosome as sex chromosomes while human males have one X and one Y chromosome as their sex chromosomes. The Y chromosome carries "SRY" gene that codes for testes determining factor and regulates the development of testes in the embryo.

6 0
2 years ago
You just came back from a class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and though
joja [24]

Answer:

Option B

Explanation:

Question -

You just came back from class in which the topic was egocentrism in the preoperational stage. You have a 4-year-old and thought that you would see if what you learned was accurate. You are sitting directly across from her and ask her to look at the front and back cover of her favorite book. After she did this you asked her to describe "the part of the book I am looking at." What does she tell you?

a) how many pages there are in the book

b) what she sees

c) what you see

d) what the story is about

Solution

As per Piaget's theory of cognitive development, when a child is at the preoperational stage he/she is able to think only at symbolic level and cannot use his/her cognitive thinking.  

He/she is unable to derive senses or meaning associated with symbols and also his/her communication is egocentric which means they cannot think from the perspective of other people.  

Hence, option B is correct

4 0
3 years ago
please help me I need much help as needed thanks.) The dependent variable in this investigation is the (1) size of the test tube
ryzh [129]

(4) amount of protein digested

8 0
3 years ago
A lunar eclipse occurs when the moon casts a shadow on earth true or false
anzhelika [568]
False in lunar eclipse the shadow is cast on the sun
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Suggest where a biologist could isolate the enzyme reverse transcriptase from.
lidiya [134]

Chemical Laboratories

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