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irina [24]
3 years ago
8

Which species is believed to be the first creature to walk erect and possibly be the first hominin?

Biology
1 answer:
OverLord2011 [107]3 years ago
7 0

Answer:

Homo erectus

Explanation:

Homo erectus is believed to be the first creature walk erect and possibly be the first hominin

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The domestic cat genome contains 2.9×109 base pairs. The length of linker DNA in mammals is 50 base pairs. Approximately how man
IgorLugansk [536]

Answer:

Number of nucleosomes in 2.9 * 10^9bp is equal to 1.47 * 10^7

Explanation:

For wounding one nucleosome, total length of DNA required is equal to 146 bp

The length of  linker DNA in mammals is equal to 50 bp

Thus , the total length of DNA that confides between two nucleosome is equal to the sum of wounding length of DNA and the linker length

= 146 + 50\\= 196bp

Thus, in 196bp length of DNA, the total number of nucleosomes is equal to 1

Thus, number of nucleosomes in 2.9 * 10^9bp is equal to

\frac{2.9* 10^9}{196} \\1.47 * 10^7

8 0
3 years ago
Which best helps scientists determine the age of fossils
natima [27]
Relative dating best helps determine fossil age. It's where layers of sedimentary rock and fossils pile up on top of each other; the oldest fossils being in the bottom layer and the youngest in the top.
6 0
4 years ago
Enzymes work only on a single substrate, in most cases. true or false.
borishaifa [10]
Most enzymes do in fact work on a single substrate in most cases, this is because of the enzyme - substrate specificity. Certain reactant molecules acting as substrates can only fit in the "lock" of particular enzymes and undergo a conformational change and result in Unique products to be released after the reaction has occurred.
7 0
3 years ago
During science class, a group of students went on a field trip to a nearby pond where they collected samples of pond water and p
Alex Ar [27]

Answer:

the organisms internal structures could not be viewed as a scanning electron microscope only provides images of the surface!

Explanation:

3 0
3 years ago
Read 2 more answers
In which order will free nucleotides add on to a single strand of DNA with the sequence ATTGCA during DNA replication? (2 points
Iteru [2.4K]

Answer:

guanine, cytosine, cytosine,adenine,thymine,guanine

Explanation:

This is because during DNA replication the complementary base pairings are Adenine and Guanine, Thymine and Cytosine.

4 0
3 years ago
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