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2 years ago

In _____ of meiosis, homologous chromosomes pair

Biology

2 answers:

Airida [17]2 years ago

6 0

Answer:

S-Phase

Explanation:

blagie [28]2 years ago

4 0

Answer:

Prophase I

Explanation:

In prophase I, each pair of homologous chromosomes (one chromosome from each parent) lines up side by side. This aligning of homologous chromosomes is called synapsis. At synapsis, the homologous chromosomes are held tightly together

along their lengths. While they are lined up, segments of the chromosomes may be exchanged. This process of exchange of genetic information is an important mechanism for providing genetic diversity, and is discussed later in this section. As prophase I continues, the centrosomes move to the poles of the cell and the spindle apparatus forms.

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Use homologous chromosome in a sentence

balu736 [363]

Despite a homologous chromosome pair having the same gene position the genes may contain different alleles

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2 years ago

A man who has male pattern baldness (X^bY) marries a woman who does not carry the allele (X^BX^B). What genotypic ratios would b

JulijaS [17]

Answer:

2 $X^BX^b$ :2 $X^BY$

Explanation:

The genotypic ratio of expected of their offspring would be 2 $X^BX^b$ :2 $X^BY$ .

From the illustration, the genotype of the man with male pattern baldness is $X^bY$ while the genotype of the woman without the baldness allele is $X^BX^B$ .

Crossing the two genotypes in marriage:

$X^bY$ x $X^BX^B$

Progeny: $X^BX^b$ $X^BX^b$ $X^BY$ $X^BY$

Hence, the genotypic ratio of the offspring becomes:

2 $X^BX^b$ :2 $X^BY$

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2 years ago

Fruits and stem have lenticels. Give reason

Brilliant_brown [7]

Answer:

lenticels appear on the surface of the bark as raised scars containing oval or rounded depressions. Lenticels are large sized aerating pores present in the cork tissue for gaseous exchange.it exchanges gases minerals,etc.

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1 year ago

In a population of goldfish, individuals can be colored orange, white, white with orange spots,

choli [55]

kahit kahit po ayaw mona kana kana aaaa

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2 years ago

When using the scientific method, which step comes last?

tino4ka555 [31]

Answer: C

Explanation: Your conclusion always comes last

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