Which of these statements about nucleosomes are correct?

Planet X has a moon similar to Earth's moon.

Komok [63]

Answer:

Planet X has a moon similar to Earth's moon.

Which path would this moon's orbit take? 3

If for some reason, the planet is destroyed and no

longer exists, which path would the moon take? 2

Explanation:

There are none of these planets in our solar system. But they might exist in other star systems. There, some moons might escape their parent planets’ gravity and start orbiting their parent stars instead. That’s according to new computer simulations. Scientists have dubbed the liberated worlds “ploonets.” And, the scientists say, current telescopes may be able to find the wayward objects.

3 0

3 years ago

Read 2 more answers

(c) Based on the data in Table 1, describe why the dominant alleles for body color and wing shape are the alleles that produce a

Brrunno [24]

Answer:

Check the explanation

Explanation:

Consider the below table of F2 data of phenotypic flies: we can reconstruct the table as seen in the second attached image below:

From the above observations it is clear the Gray body long wings and Ebony body vestigial wings are the parental combinations and that the Gray body vestigial wings and Ebony body long wings are the recombinants.

Also the ratio indicates that Gray body is dominant over ebony body and that long wings is dominant over vestigial wings.

here the genes for the two characters have shown independent assortment which means that the genes are unlinked if located on the same chromosome or are located on different chromosomes.

Now F1 hybrid= GgLl (G for Grey and L for Long)

Cross between F1 hybrid and true breeding Gray vestigial (GGll)

GgLl x GG ll

Gametes-----------> GL Gl gL gl Gl

GL Gl gL gl

Gl GGLl GGll GgLl Ggll

(Gray long) (Gray vestigial) (gray Long) (Gray vestigial)

Therefore the probability of getting the flies with gray body vestigial wings= 2/4= 50%

b) The reason why the students obtained the above given F2 results involving a cross between true breeding Gray body and long wings with true breeding Ebony body and vestigial wings is that the genes for the two charcters asssort independently in F2 generation and that the genes are not linked as:

Parents------------------> GGLL x ggll

Gametes -----------------> GL gl

F1---------------------> GgLl (Gray long but in heterozous condition)

Now GgLl x GgLl

Gametes GL Gl gL gl GL Gl gL gl

Here gametes assorted independently and hence in F2 generation we got the above results (U can show the results in the form of punnett square.

4 0

3 years ago

Imagine that NASA discovered a prokaryote-like organism. Initial experiments indicated they use the same DNA → RNA → protein sys

creativ13 [48]

Answer:

Imagine that NASA discovered a prokaryote-like organism. Initial experiments indicated they use the same DNA → RNA → protein system as life on Earth, except that

there are only 2 bases (A and T) in the Martian DNA, and

there are only 17 amino acids found in Martian proteins.

Based on this information, what is the minimum size of a codon for these hypothetical organisms?

Explanation:

7 0

3 years ago

Thinking creatively about evolutionary mechanisms, identify at least two schemes that could generate allelic polymorphism in a p

Ede4ka [16]

Complete question:

Thinking creatively about evolutionary mechanisms, identify at least

two schemes that could generate allelic polymorphism in a population except natural selection that favors heterozygotes.

Select the two correct answers.

-inbreeding among individuals in the population

-purifying selection against mutational variants of alleles in the population

-continuous migration of individuals with new alleles into the population

-mutations that do not severely affect viability and reproductivity

-genetic drift of alleles common in the population

-events leading to genetic bottleneck effect

Answer:

The two events that might favor heterozygotes among the options are

The Continuous migration of individuals with new alleles into the population

Mutations that do not severely affect viability and reproductivity. These might favor heterozygous frequencies.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf

3 0

2 years ago

Unlike prokaryotic cells, eukaryotic cells have the ability to

8_murik_8 [283]

Eukaryotic cells have the ability to absorb other cells by phagocytosis.
Characterized by the presence of the nucleus, formed by a rope DNA (the free ends) surrounded by two layers reticulum (nuclear envelope). Eukaryotic DNA forms a complex with a large number of proteins

8 0

3 years ago

Read 2 more answers